release(camera-ai): publish 0.4.14 importer hotfix

CameraAI~/CHANGELOG.md

@@ -1,5 +1,17 @@
 # Changelog
 
+## 0.4.14 - 2026-08-17
+
+- Resolved the configured CinemachineBrain from camera tracks on descendant
+  PlayableDirectors, including Cinemachine 3 `OutputCamera` setups, so
+  orchestration Timelines can import AI results without duplicating camera
+  tracks on the parent Timeline.
+- Made AI preview cloning inactive from construction and disconnected cloned
+  authored Cinemachine tracks and virtual cameras before playback. This
+  prevents the authored Motion Timeline from competing with the generated
+  Shot tracks while preserving the original scene hierarchy. This is an
+  Editor-only hotfix; the bundled Windows worker remains 0.1.9.
+
 ## 0.4.13 - 2026-08-16
 
 - Enforced radial distance bounds on the actual float32 camera coordinates,

CameraAI~/Documentation~/EXTERNAL_INSTALLATION.md

@@ -17,7 +17,7 @@ must remain together.
 In Unity Package Manager, choose **Add package from git URL** and enter:
 
 ```text
-https://kindnick-git.duckdns.org/mingle/streamingle-unity-utilities.git?path=/CameraAI~#v0.1.19
+https://kindnick-git.duckdns.org/mingle/streamingle-unity-utilities.git?path=/CameraAI~#v0.1.20
 ```
 
 The initial package download is large because the frozen Windows worker is
@@ -26,7 +26,7 @@ it, remove the package lock entry, and add the package again.
 
 ## Reference data
 
-Version 0.1.19 includes a compact, read-only `RuntimeData~` bundle with the
+Version 0.1.20 includes a compact, read-only `RuntimeData~` bundle with the
 263 prepared reference songs, cut policy, and ranker model. An artist
 workstation does not need a separate `CW-AI` checkout or Python installation.
 If a newer access-controlled library is available, it remains an optional

CameraAI~/Editor/AICameraTimelinePreviewImporter.cs

@@ -440,7 +440,7 @@ namespace Streamingle.Editor
                 originalDirector.gameObject.activeSelf;
             try
             {
-                previewDirectorObject = UnityEngine.Object.Instantiate(
+                previewDirectorObject = InstantiateInactivePreviewCloneForEditor(
                     originalDirector.gameObject,
                     originalDirector.transform.parent);
                 Undo.RegisterCreatedObjectUndo(
@@ -456,6 +456,7 @@ namespace Streamingle.Editor
                     originalTimeline,
                     previewDirector,
                     copiedTimeline);
+                SuppressAuthoredCinemachineOutputsForEditor(previewDirector);
                 MuteCopiedCameraTracks(previewDirector, copiedTimeline);
                 MuteCopiedRecorderTracks(copiedTimeline);
 
@@ -595,6 +596,7 @@ namespace Streamingle.Editor
                     $"Position Dense C2 Fallbacks: {positionDenseFallbackCount:N0}",
                     $"Preview Director: {GetHierarchyPath(previewDirector.transform)}",
                     $"Preview Camera Root: {GetHierarchyPath(previewCameraObject.transform)}",
+                    GetPreviewOutputStatusForEditor(brain),
                     $"Timeline Asset: {copiedTimelinePath}",
                     $"Animation Assets: {generatedClipPaths.Count:N0} " +
                     $"under {shotAnimationFolder}",
@@ -1449,6 +1451,8 @@ namespace Streamingle.Editor
             TimelineAsset finalTimeline = null;
             GameObject cameraPrefab = null;
             GameObject finalCameraRoot = null;
+            AuthoredCinemachineStateSnapshot destinationCinemachineStateBefore =
+                null;
             try
             {
                 var sourceTimelinePath = AssetDatabase.GetAssetPath(sourceTimeline);
@@ -1511,6 +1515,11 @@ namespace Streamingle.Editor
                     destinationTimelineBefore,
                     finalTimeline,
                     finalCameraRoot);
+                destinationCinemachineStateBefore =
+                    CaptureAuthoredCinemachineState(destinationDirector);
+                SuppressAuthoredCinemachineOutputsForEditor(
+                    destinationDirector,
+                    false);
                 destinationDirector.time = destinationTimeBefore;
                 destinationDirector.RebuildGraph();
                 destinationDirector.time = destinationTimeBefore;
@@ -1545,6 +1554,8 @@ namespace Streamingle.Editor
             }
             catch
             {
+                RestoreAuthoredCinemachineState(
+                    destinationCinemachineStateBefore);
                 RestoreDestinationDirectorAfterFinalizationFailure(
                     destinationStateBefore,
                     finalTimeline);
@@ -1943,6 +1954,7 @@ namespace Streamingle.Editor
                 destinationDirector.SetReferenceValue(exposedName, camera);
                 EditorUtility.SetDirty(shot);
             }
+
         }
 
         internal static void ClearTimelineBindingsForFinalization(
@@ -5575,6 +5587,46 @@ namespace Streamingle.Editor
             return clonedComponents[index];
         }
 
+        internal static GameObject InstantiateInactivePreviewCloneForEditor(
+            GameObject sourceObject,
+            Transform destinationParent)
+        {
+            if (sourceObject == null)
+            {
+                throw new ArgumentNullException(nameof(sourceObject));
+            }
+
+            var sourceScene = sourceObject.scene;
+            if (!sourceScene.IsValid() || !sourceScene.isLoaded)
+            {
+                throw new InvalidOperationException(
+                    "The source Timeline object must belong to a loaded scene.");
+            }
+
+            var stagingObject = new GameObject(
+                "__CWAI_InactivePreviewCloneStaging");
+            stagingObject.SetActive(false);
+            try
+            {
+                if (stagingObject.scene != sourceScene)
+                {
+                    SceneManager.MoveGameObjectToScene(stagingObject, sourceScene);
+                }
+
+                var clone = UnityEngine.Object.Instantiate(
+                    sourceObject,
+                    stagingObject.transform,
+                    true);
+                clone.SetActive(false);
+                clone.transform.SetParent(destinationParent, true);
+                return clone;
+            }
+            finally
+            {
+                UnityEngine.Object.DestroyImmediate(stagingObject);
+            }
+        }
+
         private static void EnsureNoExistingPreview(
             Scene scene,
             string previewDirectorName,
@@ -5645,30 +5697,49 @@ namespace Streamingle.Editor
             }
 
             var scene = director.gameObject.scene;
-            var boundBrains = timeline.GetOutputTracks()
+            var directlyBoundBrains = GetBoundCinemachineBrains(
-                .OfType<CinemachineTrack>()
+                director,
-                .Select(track => director.GetGenericBinding(track) as CinemachineBrain)
+                timeline);
-                .Where(brain => brain != null)
+            if (directlyBoundBrains.Length > 1)
-                .Distinct()
-                .ToArray();
-            if (boundBrains.Length > 1)
             {
                 throw new InvalidOperationException(
                     "The Timeline has Cinemachine Tracks bound to multiple " +
                     "CinemachineBrain components. Bind every camera track to one Brain.");
             }
 
-            if (boundBrains.Length == 1)
+            if (directlyBoundBrains.Length == 1)
             {
-                var boundBrain = boundBrains[0];
+                return ValidateExplicitCinemachineBrain(
-                if (!IsUsableCinemachineBrain(boundBrain, scene))
+                    directlyBoundBrains[0],
-                {
+                    scene);
-                    throw new InvalidOperationException(
+            }
-                        "The CinemachineBrain bound to the Timeline must be enabled, " +
-                        "attached to an enabled Camera, and belong to the Timeline scene.");
-                }
 
-                return boundBrain;
+            var descendantBoundBrains = director.gameObject
+                .GetComponentsInChildren<PlayableDirector>(true)
+                .Where(descendant =>
+                    descendant != null &&
+                    descendant != director &&
+                    descendant.gameObject.scene == scene &&
+                    descendant.playableAsset is TimelineAsset)
+                .SelectMany(descendant => GetBoundCinemachineBrains(
+                    descendant,
+                    (TimelineAsset)descendant.playableAsset))
+                .Distinct()
+                .ToArray();
+            if (descendantBoundBrains.Length > 1)
+            {
+                throw new InvalidOperationException(
+                    "Descendant PlayableDirectors under the selected Timeline object " +
+                    "have Cinemachine Tracks bound to multiple CinemachineBrain " +
+                    "components. Bind them to one Brain or bind the selected Timeline " +
+                    "directly.");
+            }
+
+            if (descendantBoundBrains.Length == 1)
+            {
+                return ValidateExplicitCinemachineBrain(
+                    descendantBoundBrains[0],
+                    scene);
             }
 
             var usableBrains = sceneBrains
@@ -5678,7 +5749,7 @@ namespace Streamingle.Editor
             var mainCameraBrains = usableBrains
                 .Where(brain =>
                 {
-                    var camera = brain.GetComponent<Camera>();
+                    var camera = brain.OutputCamera;
                     return camera != null && camera.CompareTag("MainCamera");
                 })
                 .ToArray();
@@ -5714,6 +5785,81 @@ namespace Streamingle.Editor
                 "one Camera as MainCamera or bind a Cinemachine Track explicitly.");
         }
 
+        private static CinemachineBrain[] GetBoundCinemachineBrains(
+            PlayableDirector director,
+            TimelineAsset timeline)
+        {
+            return timeline.GetOutputTracks()
+                .OfType<CinemachineTrack>()
+                .Select(track =>
+                    director.GetGenericBinding(track) as CinemachineBrain)
+                .Where(brain => brain != null)
+                .Distinct()
+                .ToArray();
+        }
+
+        private static CinemachineBrain ValidateExplicitCinemachineBrain(
+            CinemachineBrain brain,
+            Scene scene)
+        {
+            if (brain.gameObject.scene != scene)
+            {
+                throw new InvalidOperationException(
+                    "The CinemachineBrain explicitly bound to a Timeline must belong " +
+                    "to the same scene as the selected Timeline director.");
+            }
+
+            var camera = brain.OutputCamera;
+            if (camera == null)
+            {
+                throw new InvalidOperationException(
+                    "The CinemachineBrain explicitly bound to a Timeline must have an " +
+                    "output Camera component on its controlled GameObject.");
+            }
+
+            if (camera.gameObject.scene != scene)
+            {
+                throw new InvalidOperationException(
+                    "The CinemachineBrain output Camera explicitly bound to a Timeline " +
+                    "must belong to the same scene as the selected Timeline director.");
+            }
+
+            if (!brain.isActiveAndEnabled || !camera.isActiveAndEnabled)
+            {
+                Debug.LogWarning(
+                    "The CinemachineBrain explicitly bound to a Timeline or its " +
+                    "Camera is disabled. Camera AI will use the configured Brain " +
+                    "without enabling either component automatically.",
+                    brain);
+            }
+
+            return brain;
+        }
+
+        internal static string GetPreviewOutputStatusForEditor(
+            CinemachineBrain brain)
+        {
+            if (brain == null)
+            {
+                throw new ArgumentNullException(nameof(brain));
+            }
+
+            var camera = brain.OutputCamera;
+            var cameraName = camera != null
+                ? camera.gameObject.name
+                : brain.gameObject.name;
+            if (camera != null &&
+                brain.isActiveAndEnabled &&
+                camera.isActiveAndEnabled)
+            {
+                return $"Preview Output: configured '{cameraName}' CinemachineBrain " +
+                       "and Camera are active.";
+            }
+
+            return $"Preview Output: configured '{cameraName}' CinemachineBrain or " +
+                   "Camera is disabled; enable it to see AI camera playback.";
+        }
+
         private static bool IsUsableCinemachineBrain(
             CinemachineBrain brain,
             Scene scene)
@@ -5725,8 +5871,193 @@ namespace Streamingle.Editor
                 return false;
             }
 
-            var camera = brain.GetComponent<Camera>();
+            var camera = brain.OutputCamera;
-            return camera != null && camera.isActiveAndEnabled;
+            return camera != null &&
+                   camera.gameObject.scene == scene &&
+                   camera.isActiveAndEnabled;
+        }
+
+        internal static void SuppressAuthoredCinemachineOutputsForEditor(
+            PlayableDirector selectedDirector,
+            bool recordUndo = true)
+        {
+            if (selectedDirector == null)
+            {
+                throw new ArgumentNullException(nameof(selectedDirector));
+            }
+
+            var directorObject = selectedDirector.gameObject;
+            var descendantDirectors = directorObject
+                .GetComponentsInChildren<PlayableDirector>(true)
+                .Where(descendant =>
+                    descendant != null &&
+                    descendant != selectedDirector &&
+                    descendant.playableAsset is TimelineAsset)
+                .ToArray();
+            foreach (var descendantDirector in descendantDirectors)
+            {
+                var descendantTimeline =
+                    (TimelineAsset)descendantDirector.playableAsset;
+                var cinemachineTracks = descendantTimeline.GetOutputTracks()
+                    .OfType<CinemachineTrack>()
+                    .ToArray();
+                if (cinemachineTracks.Length == 0)
+                {
+                    continue;
+                }
+
+                if (recordUndo)
+                {
+                    Undo.RecordObject(
+                        descendantDirector,
+                        "Disconnect Authored Cameras From AI Preview");
+                }
+
+                foreach (var cinemachineTrack in cinemachineTracks)
+                {
+                    descendantDirector.ClearGenericBinding(cinemachineTrack);
+                }
+
+                RebuildDirectorGraphPreservingPlayback(descendantDirector);
+
+                EditorUtility.SetDirty(descendantDirector);
+            }
+
+            foreach (var authoredCamera in directorObject
+                         .GetComponentsInChildren<CinemachineVirtualCameraBase>(true))
+            {
+                if (authoredCamera == null || !authoredCamera.enabled)
+                {
+                    continue;
+                }
+
+                if (recordUndo)
+                {
+                    Undo.RecordObject(
+                        authoredCamera,
+                        "Disable Authored Cameras In AI Output");
+                }
+
+                authoredCamera.enabled = false;
+                EditorUtility.SetDirty(authoredCamera);
+            }
+        }
+
+        internal static AuthoredCinemachineStateSnapshot
+            CaptureAuthoredCinemachineState(PlayableDirector selectedDirector)
+        {
+            if (selectedDirector == null)
+            {
+                throw new ArgumentNullException(nameof(selectedDirector));
+            }
+
+            var directorObject = selectedDirector.gameObject;
+            var directorStates = directorObject
+                .GetComponentsInChildren<PlayableDirector>(true)
+                .Where(descendant =>
+                    descendant != null &&
+                    descendant != selectedDirector &&
+                    descendant.playableAsset is TimelineAsset)
+                .Select(descendant =>
+                {
+                    var timeline = (TimelineAsset)descendant.playableAsset;
+                    var tracks = timeline.GetOutputTracks()
+                        .OfType<CinemachineTrack>()
+                        .ToArray();
+                    return new AuthoredCinemachineDirectorState(
+                        descendant,
+                        tracks,
+                        tracks.Select(descendant.GetGenericBinding).ToArray());
+                })
+                .Where(state => state.Tracks.Length > 0)
+                .ToArray();
+            var cameraStates = directorObject
+                .GetComponentsInChildren<CinemachineVirtualCameraBase>(true)
+                .Where(camera => camera != null)
+                .Select(camera => new AuthoredVirtualCameraState(
+                    camera,
+                    camera.enabled))
+                .ToArray();
+            return new AuthoredCinemachineStateSnapshot(
+                directorStates,
+                cameraStates);
+        }
+
+        internal static void RestoreAuthoredCinemachineState(
+            AuthoredCinemachineStateSnapshot snapshot)
+        {
+            if (snapshot == null)
+            {
+                return;
+            }
+
+            foreach (var cameraState in snapshot.CameraStates)
+            {
+                if (cameraState.Camera == null)
+                {
+                    continue;
+                }
+
+                cameraState.Camera.enabled = cameraState.Enabled;
+                EditorUtility.SetDirty(cameraState.Camera);
+            }
+
+            foreach (var directorState in snapshot.DirectorStates)
+            {
+                var director = directorState.Director;
+                if (director == null)
+                {
+                    continue;
+                }
+
+                for (var index = 0; index < directorState.Tracks.Length; index++)
+                {
+                    var track = directorState.Tracks[index];
+                    if (track == null)
+                    {
+                        continue;
+                    }
+
+                    var binding = directorState.Bindings[index];
+                    if (binding != null)
+                    {
+                        director.SetGenericBinding(track, binding);
+                    }
+                    else
+                    {
+                        director.ClearGenericBinding(track);
+                    }
+                }
+
+                RebuildDirectorGraphPreservingPlayback(director);
+
+                EditorUtility.SetDirty(director);
+            }
+        }
+
+        private static void RebuildDirectorGraphPreservingPlayback(
+            PlayableDirector director)
+        {
+            if (!director.playableGraph.IsValid())
+            {
+                return;
+            }
+
+            var time = director.time;
+            var wasPlaying = director.state == PlayState.Playing;
+            director.Stop();
+            director.RebuildGraph();
+            director.time = time;
+            if (wasPlaying)
+            {
+                director.Play();
+                director.time = time;
+            }
+            else
+            {
+                director.Evaluate();
+                director.time = time;
+            }
         }
 
         private static void CopyTrackBindings(
@@ -6944,6 +7275,51 @@ namespace Streamingle.Editor
             public GameObject CameraRoot { get; }
         }
 
+        internal sealed class AuthoredCinemachineStateSnapshot
+        {
+            public AuthoredCinemachineStateSnapshot(
+                AuthoredCinemachineDirectorState[] directorStates,
+                AuthoredVirtualCameraState[] cameraStates)
+            {
+                DirectorStates = directorStates;
+                CameraStates = cameraStates;
+            }
+
+            public AuthoredCinemachineDirectorState[] DirectorStates { get; }
+            public AuthoredVirtualCameraState[] CameraStates { get; }
+        }
+
+        internal sealed class AuthoredCinemachineDirectorState
+        {
+            public AuthoredCinemachineDirectorState(
+                PlayableDirector director,
+                CinemachineTrack[] tracks,
+                UnityEngine.Object[] bindings)
+            {
+                Director = director;
+                Tracks = tracks;
+                Bindings = bindings;
+            }
+
+            public PlayableDirector Director { get; }
+            public CinemachineTrack[] Tracks { get; }
+            public UnityEngine.Object[] Bindings { get; }
+        }
+
+        internal sealed class AuthoredVirtualCameraState
+        {
+            public AuthoredVirtualCameraState(
+                CinemachineVirtualCameraBase camera,
+                bool enabled)
+            {
+                Camera = camera;
+                Enabled = enabled;
+            }
+
+            public CinemachineVirtualCameraBase Camera { get; }
+            public bool Enabled { get; }
+        }
+
         private sealed class DirectorStateSnapshot
         {
             public DirectorStateSnapshot(

CameraAI~/README.md

@@ -16,7 +16,7 @@ Cinemachine Track이나 기존 카메라 애니메이션은 필요하지 않으
 Unity Package Manager의 `Add package from git URL`에는 다음 주소를 사용할 수
 있습니다.
 
-`https://kindnick-git.duckdns.org/mingle/streamingle-unity-utilities.git?path=/CameraAI~#v0.1.19`
+`https://kindnick-git.duckdns.org/mingle/streamingle-unity-utilities.git?path=/CameraAI~#v0.1.20`
 
 배포 패키지에는 Windows x64용 `CWCameraWorker` 폴더 전체가 포함됩니다.
 Python은 따로 설치하지 않아도 되지만, Git 패키지의 대용량 바이너리를 받으려면

CameraAI~/Tests/Editor/AICameraTimelinePreviewImporterTests.cs

@@ -6,13 +6,26 @@ using System.Text;
 using NUnit.Framework;
 using Unity.Cinemachine;
 using UnityEditor;
+using UnityEditor.SceneManagement;
 using UnityEngine;
 using UnityEngine.Playables;
+using UnityEngine.SceneManagement;
+using UnityEngine.TestTools;
 using UnityEngine.Timeline;
 using Object = UnityEngine.Object;
 
 namespace Streamingle.Editor.Tests
 {
+    public sealed class PreviewCloneActivationProbe : MonoBehaviour
+    {
+        internal static int EnableCount { get; set; }
+
+        private void OnEnable()
+        {
+            EnableCount++;
+        }
+    }
+
     public sealed class AICameraTimelinePreviewImporterTests
     {
         [Test]
@@ -34,6 +47,10 @@ namespace Streamingle.Editor.Tests
                         timeline,
                         new[] { brain }),
                     Is.SameAs(brain));
+                Assert.That(
+                    AICameraTimelinePreviewImporter
+                        .GetPreviewOutputStatusForEditor(brain),
+                    Does.Contain("are active"));
             }
             finally
             {
@@ -111,6 +128,843 @@ namespace Streamingle.Editor.Tests
             }
         }
 
+        [Test]
+        public void BrainResolutionUsesDisabledUniqueDescendantBinding()
+        {
+            var directorObject = new GameObject("Director");
+            var childDirectorObject = new GameObject("Camera Director");
+            var cameraObject = new GameObject("Configured Camera");
+            childDirectorObject.transform.SetParent(directorObject.transform, false);
+            var timeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            TimelineAsset childTimeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                director.playableAsset = timeline;
+                var childDirector =
+                    childDirectorObject.AddComponent<PlayableDirector>();
+                cameraObject.AddComponent<Camera>();
+                var brain = cameraObject.AddComponent<CinemachineBrain>();
+                childTimeline = CreateTimelineBoundToBrain(
+                    childDirector,
+                    brain,
+                    "Child Camera Track");
+                childDirectorObject.SetActive(false);
+                brain.enabled = false;
+
+                LogAssert.Expect(
+                    LogType.Warning,
+                    "The CinemachineBrain explicitly bound to a Timeline or its " +
+                    "Camera is disabled. Camera AI will use the configured Brain " +
+                    "without enabling either component automatically.");
+                Assert.That(
+                    AICameraTimelinePreviewImporter.ResolveCinemachineBrainForEditor(
+                        director,
+                        timeline,
+                        new[] { brain }),
+                    Is.SameAs(brain));
+                Assert.That(brain.enabled, Is.False);
+                Assert.That(
+                    AICameraTimelinePreviewImporter
+                        .GetPreviewOutputStatusForEditor(brain),
+                    Does.Contain("enable it to see AI camera playback"));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(cameraObject);
+                Object.DestroyImmediate(childTimeline);
+                Object.DestroyImmediate(timeline);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionDeduplicatesSameBrainAcrossDescendants()
+        {
+            var directorObject = new GameObject("Director");
+            var firstChildObject = new GameObject("First Camera Director");
+            var secondChildObject = new GameObject("Second Camera Director");
+            var cameraObject = new GameObject("Configured Camera");
+            firstChildObject.transform.SetParent(directorObject.transform, false);
+            secondChildObject.transform.SetParent(directorObject.transform, false);
+            var timeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            TimelineAsset firstChildTimeline = null;
+            TimelineAsset secondChildTimeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                director.playableAsset = timeline;
+                var firstChildDirector =
+                    firstChildObject.AddComponent<PlayableDirector>();
+                var secondChildDirector =
+                    secondChildObject.AddComponent<PlayableDirector>();
+                cameraObject.AddComponent<Camera>();
+                var brain = cameraObject.AddComponent<CinemachineBrain>();
+                firstChildTimeline = CreateTimelineBoundToBrain(
+                    firstChildDirector,
+                    brain,
+                    "First Child Camera Track");
+                secondChildTimeline = CreateTimelineBoundToBrain(
+                    secondChildDirector,
+                    brain,
+                    "Second Child Camera Track");
+
+                Assert.That(
+                    AICameraTimelinePreviewImporter.ResolveCinemachineBrainForEditor(
+                        director,
+                        timeline,
+                        Array.Empty<CinemachineBrain>()),
+                    Is.SameAs(brain));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(cameraObject);
+                Object.DestroyImmediate(firstChildTimeline);
+                Object.DestroyImmediate(secondChildTimeline);
+                Object.DestroyImmediate(timeline);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionRejectsAmbiguousDescendantBindings()
+        {
+            var directorObject = new GameObject("Director");
+            var firstChildObject = new GameObject("First Camera Director");
+            var secondChildObject = new GameObject("Second Camera Director");
+            var firstCameraObject = new GameObject("First Configured Camera");
+            var secondCameraObject = new GameObject("Second Configured Camera");
+            firstChildObject.transform.SetParent(directorObject.transform, false);
+            secondChildObject.transform.SetParent(directorObject.transform, false);
+            var timeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            TimelineAsset firstChildTimeline = null;
+            TimelineAsset secondChildTimeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                director.playableAsset = timeline;
+                var firstChildDirector =
+                    firstChildObject.AddComponent<PlayableDirector>();
+                var secondChildDirector =
+                    secondChildObject.AddComponent<PlayableDirector>();
+                firstCameraObject.AddComponent<Camera>();
+                var firstBrain =
+                    firstCameraObject.AddComponent<CinemachineBrain>();
+                secondCameraObject.AddComponent<Camera>();
+                var secondBrain =
+                    secondCameraObject.AddComponent<CinemachineBrain>();
+                firstChildTimeline = CreateTimelineBoundToBrain(
+                    firstChildDirector,
+                    firstBrain,
+                    "First Child Camera Track");
+                secondChildTimeline = CreateTimelineBoundToBrain(
+                    secondChildDirector,
+                    secondBrain,
+                    "Second Child Camera Track");
+
+                Assert.That(
+                    () => AICameraTimelinePreviewImporter
+                        .ResolveCinemachineBrainForEditor(
+                            director,
+                            timeline,
+                            new[] { firstBrain, secondBrain }),
+                    Throws.TypeOf<InvalidOperationException>()
+                        .With.Message.Contains("Descendant PlayableDirectors"));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(firstCameraObject);
+                Object.DestroyImmediate(secondCameraObject);
+                Object.DestroyImmediate(firstChildTimeline);
+                Object.DestroyImmediate(secondChildTimeline);
+                Object.DestroyImmediate(timeline);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionPrefersDirectBindingOverDescendants()
+        {
+            var directorObject = new GameObject("Director");
+            var childDirectorObject = new GameObject("Camera Director");
+            var directCameraObject = new GameObject("Direct Camera");
+            var childCameraObject = new GameObject("Child Camera");
+            childDirectorObject.transform.SetParent(directorObject.transform, false);
+            TimelineAsset timeline = null;
+            TimelineAsset childTimeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                var childDirector =
+                    childDirectorObject.AddComponent<PlayableDirector>();
+                directCameraObject.AddComponent<Camera>();
+                var directBrain =
+                    directCameraObject.AddComponent<CinemachineBrain>();
+                childCameraObject.AddComponent<Camera>();
+                var childBrain =
+                    childCameraObject.AddComponent<CinemachineBrain>();
+                timeline = CreateTimelineBoundToBrain(
+                    director,
+                    directBrain,
+                    "Direct Camera Track");
+                childTimeline = CreateTimelineBoundToBrain(
+                    childDirector,
+                    childBrain,
+                    "Child Camera Track");
+
+                Assert.That(
+                    AICameraTimelinePreviewImporter.ResolveCinemachineBrainForEditor(
+                        director,
+                        timeline,
+                        new[] { childBrain, directBrain }),
+                    Is.SameAs(directBrain));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(directCameraObject);
+                Object.DestroyImmediate(childCameraObject);
+                Object.DestroyImmediate(childTimeline);
+                Object.DestroyImmediate(timeline);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionRejectsExplicitBrainFromAnotherScene()
+        {
+            var directorObject = new GameObject("Director");
+            var cameraObject = new GameObject("Foreign Camera");
+            var foreignScene = EditorSceneManager.NewPreviewScene();
+            SceneManager.MoveGameObjectToScene(cameraObject, foreignScene);
+            TimelineAsset timeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                cameraObject.AddComponent<Camera>();
+                var brain = cameraObject.AddComponent<CinemachineBrain>();
+                timeline = CreateTimelineBoundToBrain(
+                    director,
+                    brain,
+                    "Foreign Camera Track");
+
+                Assert.That(
+                    () => AICameraTimelinePreviewImporter
+                        .ResolveCinemachineBrainForEditor(
+                            director,
+                            timeline,
+                            new[] { brain }),
+                    Throws.TypeOf<InvalidOperationException>()
+                        .With.Message.Contains("same scene"));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(cameraObject);
+                Object.DestroyImmediate(timeline);
+                EditorSceneManager.ClosePreviewScene(foreignScene);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionRejectsExplicitBrainWithoutCamera()
+        {
+            var directorObject = new GameObject("Director");
+            var cameraObject = new GameObject("Camera-less Brain");
+            TimelineAsset timeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                var camera = cameraObject.AddComponent<Camera>();
+                var brain = cameraObject.AddComponent<CinemachineBrain>();
+                Object.DestroyImmediate(camera);
+                timeline = CreateTimelineBoundToBrain(
+                    director,
+                    brain,
+                    "Invalid Camera Track");
+
+                Assert.That(
+                    () => AICameraTimelinePreviewImporter
+                        .ResolveCinemachineBrainForEditor(
+                            director,
+                            timeline,
+                            new[] { brain }),
+                    Throws.TypeOf<InvalidOperationException>()
+                        .With.Message.Contains("Camera component"));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(cameraObject);
+                Object.DestroyImmediate(timeline);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionAcceptsSeparateControlledOutputCamera()
+        {
+            var directorObject = new GameObject("Director");
+            var brainObject = new GameObject("Configured Brain");
+            var outputCameraObject = new GameObject("Controlled Output Camera");
+            TimelineAsset timeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                var brain = brainObject.AddComponent<CinemachineBrain>();
+                var outputCamera = outputCameraObject.AddComponent<Camera>();
+                brain.ControlledObject = outputCameraObject;
+                timeline = CreateTimelineBoundToBrain(
+                    director,
+                    brain,
+                    "Controlled Output Camera Track");
+
+                Assert.That(brain.OutputCamera, Is.SameAs(outputCamera));
+                Assert.That(
+                    AICameraTimelinePreviewImporter.ResolveCinemachineBrainForEditor(
+                        director,
+                        timeline,
+                        new[] { brain }),
+                    Is.SameAs(brain));
+                Assert.That(
+                    AICameraTimelinePreviewImporter
+                        .GetPreviewOutputStatusForEditor(brain),
+                    Does.Contain(outputCameraObject.name));
+                Assert.That(
+                    AICameraTimelinePreviewImporter
+                        .GetPreviewOutputStatusForEditor(brain),
+                    Does.Contain("are active"));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(brainObject);
+                Object.DestroyImmediate(outputCameraObject);
+                Object.DestroyImmediate(timeline);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionUsesControlledOutputMainCameraForFallback()
+        {
+            var directorObject = new GameObject("Director");
+            var mainBrainObject = new GameObject("Main Output Brain");
+            var mainCameraObject = new GameObject("Main Output Camera");
+            var secondaryCameraObject = new GameObject("Secondary Camera");
+            var timeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                director.playableAsset = timeline;
+                var mainBrain = mainBrainObject.AddComponent<CinemachineBrain>();
+                mainCameraObject.tag = "MainCamera";
+                mainCameraObject.AddComponent<Camera>();
+                mainBrain.ControlledObject = mainCameraObject;
+                secondaryCameraObject.AddComponent<Camera>();
+                var secondaryBrain =
+                    secondaryCameraObject.AddComponent<CinemachineBrain>();
+
+                Assert.That(
+                    AICameraTimelinePreviewImporter.ResolveCinemachineBrainForEditor(
+                        director,
+                        timeline,
+                        new[] { secondaryBrain, mainBrain }),
+                    Is.SameAs(mainBrain));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(mainBrainObject);
+                Object.DestroyImmediate(mainCameraObject);
+                Object.DestroyImmediate(secondaryCameraObject);
+                Object.DestroyImmediate(timeline);
+            }
+        }
+
+        [Test]
+        public void BrainResolutionRejectsControlledOutputCameraFromAnotherScene()
+        {
+            var directorObject = new GameObject("Director");
+            var brainObject = new GameObject("Configured Brain");
+            var outputCameraObject = new GameObject("Foreign Output Camera");
+            var foreignScene = EditorSceneManager.NewPreviewScene();
+            SceneManager.MoveGameObjectToScene(outputCameraObject, foreignScene);
+            TimelineAsset timeline = null;
+            try
+            {
+                var director = directorObject.AddComponent<PlayableDirector>();
+                var brain = brainObject.AddComponent<CinemachineBrain>();
+                outputCameraObject.AddComponent<Camera>();
+                brain.ControlledObject = outputCameraObject;
+                timeline = CreateTimelineBoundToBrain(
+                    director,
+                    brain,
+                    "Foreign Controlled Output Track");
+
+                Assert.That(
+                    () => AICameraTimelinePreviewImporter
+                        .ResolveCinemachineBrainForEditor(
+                            director,
+                            timeline,
+                            new[] { brain }),
+                    Throws.TypeOf<InvalidOperationException>()
+                        .With.Message.Contains("output Camera")
+                        .And.Message.Contains("same scene"));
+            }
+            finally
+            {
+                Object.DestroyImmediate(directorObject);
+                Object.DestroyImmediate(brainObject);
+                Object.DestroyImmediate(outputCameraObject);
+                Object.DestroyImmediate(timeline);
+                EditorSceneManager.ClosePreviewScene(foreignScene);
+            }
+        }
+
+        [Test]
+        public void InactiveStagingCloneNeverActivatesAndPreservesSourcePlayback()
+        {
+            var parentObject = new GameObject("Preview Parent");
+            var sourceObject = new GameObject("Source Director");
+            var motionObject = new GameObject("Motion Director");
+            var authoredCameraObject = new GameObject("Authored Virtual Camera");
+            sourceObject.transform.SetParent(parentObject.transform, false);
+            motionObject.transform.SetParent(sourceObject.transform, false);
+            authoredCameraObject.transform.SetParent(
+                motionObject.transform,
+                false);
+            parentObject.transform.position = new Vector3(4f, -2f, 7f);
+            sourceObject.transform.localPosition = new Vector3(1f, 2f, 3f);
+            var sourceTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            var motionTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            GameObject cloneObject = null;
+            PlayableDirector motionDirector = null;
+            try
+            {
+                var sourceDirector =
+                    sourceObject.AddComponent<PlayableDirector>();
+                sourceDirector.playOnAwake = false;
+                sourceDirector.playableAsset = sourceTimeline;
+                motionDirector = motionObject.AddComponent<PlayableDirector>();
+                motionDirector.playOnAwake = true;
+                motionDirector.timeUpdateMode = DirectorUpdateMode.Manual;
+                motionDirector.playableAsset = motionTimeline;
+                var authoredCamera = authoredCameraObject
+                    .AddComponent<CinemachineCamera>();
+                sourceObject.AddComponent<PreviewCloneActivationProbe>();
+
+                motionDirector.Play();
+                motionDirector.time = 0.4d;
+                motionDirector.Evaluate();
+                var sourceWorldPosition = sourceObject.transform.position;
+                var sourcePlaybackState = motionDirector.state;
+                PreviewCloneActivationProbe.EnableCount = 0;
+
+                cloneObject = AICameraTimelinePreviewImporter
+                    .InstantiateInactivePreviewCloneForEditor(
+                        sourceObject,
+                        parentObject.transform);
+                var cloneMotionDirector = cloneObject.transform
+                    .Find(motionObject.name)
+                    .GetComponent<PlayableDirector>();
+                var cloneAuthoredCamera = cloneObject.transform
+                    .Find($"{motionObject.name}/{authoredCameraObject.name}")
+                    .GetComponent<CinemachineCamera>();
+
+                Assert.That(cloneObject.transform.parent, Is.SameAs(parentObject.transform));
+                Assert.That(cloneObject.transform.position, Is.EqualTo(sourceWorldPosition));
+                Assert.That(cloneObject.activeSelf, Is.False);
+                Assert.That(cloneObject.activeInHierarchy, Is.False);
+                Assert.That(PreviewCloneActivationProbe.EnableCount, Is.Zero);
+                Assert.That(cloneMotionDirector.playOnAwake, Is.True);
+                Assert.That(cloneMotionDirector.playableGraph.IsValid(), Is.False);
+                Assert.That(cloneAuthoredCamera.enabled, Is.True);
+                Assert.That(cloneAuthoredCamera.isActiveAndEnabled, Is.False);
+                Assert.That(sourceObject.activeSelf, Is.True);
+                Assert.That(sourceObject.activeInHierarchy, Is.True);
+                Assert.That(motionDirector.state, Is.EqualTo(sourcePlaybackState));
+                Assert.That(motionDirector.time, Is.EqualTo(0.4d).Within(0.000001d));
+                Assert.That(authoredCamera.enabled, Is.True);
+                Assert.That(authoredCamera.isActiveAndEnabled, Is.True);
+            }
+            finally
+            {
+                PreviewCloneActivationProbe.EnableCount = 0;
+                if (motionDirector != null)
+                {
+                    motionDirector.Stop();
+                }
+
+                Object.DestroyImmediate(cloneObject);
+                Object.DestroyImmediate(parentObject);
+                Object.DestroyImmediate(motionTimeline);
+                Object.DestroyImmediate(sourceTimeline);
+            }
+        }
+
+        [Test]
+        public void PreviewCloneSuppressesOnlyAuthoredCinemachineOutputs()
+        {
+            var sourceObject = new GameObject("Source Director");
+            var motionObject = new GameObject("Motion Director");
+            var authoredVirtualCameraObject =
+                new GameObject("Authored Virtual Camera");
+            var cameraObject = new GameObject("Authored Camera");
+            motionObject.transform.SetParent(sourceObject.transform, false);
+            authoredVirtualCameraObject.transform.SetParent(
+                motionObject.transform,
+                false);
+            var sourceTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            TimelineAsset motionTimeline = null;
+            GameObject previewObject = null;
+            try
+            {
+                var sourceDirector =
+                    sourceObject.AddComponent<PlayableDirector>();
+                sourceDirector.playOnAwake = false;
+                sourceDirector.playableAsset = sourceTimeline;
+                var motionDirector =
+                    motionObject.AddComponent<PlayableDirector>();
+                motionDirector.playOnAwake = false;
+                var motionAnimator = motionObject.AddComponent<Animator>();
+                var authoredVirtualCamera = authoredVirtualCameraObject
+                    .AddComponent<CinemachineCamera>();
+                cameraObject.AddComponent<Camera>();
+                var authoredBrain =
+                    cameraObject.AddComponent<CinemachineBrain>();
+                motionTimeline = CreateTimelineBoundToBrain(
+                    motionDirector,
+                    authoredBrain,
+                    "Authored Camera Track");
+                var motionTrack = motionTimeline.CreateTrack<AnimationTrack>(
+                    null,
+                    "Motion Track");
+                motionDirector.SetGenericBinding(motionTrack, motionAnimator);
+
+                previewObject = Object.Instantiate(sourceObject);
+                var previewMotionObject =
+                    previewObject.transform.Find(motionObject.name).gameObject;
+                var previewMotionDirector =
+                    previewMotionObject.GetComponent<PlayableDirector>();
+                var previewMotionAnimator =
+                    previewMotionObject.GetComponent<Animator>();
+                var previewAuthoredVirtualCamera = previewMotionObject.transform
+                    .Find(authoredVirtualCameraObject.name)
+                    .GetComponent<CinemachineCamera>();
+                var authoredCameraTrack = motionTimeline.GetOutputTracks()
+                    .OfType<CinemachineTrack>()
+                    .Single();
+                var motionTimelineWasDirty = EditorUtility.IsDirty(motionTimeline);
+                var suppressionState = AICameraTimelinePreviewImporter
+                    .CaptureAuthoredCinemachineState(
+                        previewObject.GetComponent<PlayableDirector>());
+
+                Assert.That(previewObject.activeSelf, Is.True);
+                Assert.That(
+                    previewMotionDirector.GetGenericBinding(authoredCameraTrack),
+                    Is.SameAs(authoredBrain));
+                Assert.That(
+                    previewMotionDirector.GetGenericBinding(motionTrack),
+                    Is.SameAs(previewMotionAnimator));
+                Assert.That(previewAuthoredVirtualCamera.enabled, Is.True);
+                Assert.That(authoredVirtualCamera.enabled, Is.True);
+
+                AICameraTimelinePreviewImporter
+                    .SuppressAuthoredCinemachineOutputsForEditor(
+                        previewObject.GetComponent<PlayableDirector>());
+
+                Assert.That(
+                    previewMotionDirector.GetGenericBinding(authoredCameraTrack),
+                    Is.Null);
+                Assert.That(
+                    previewMotionDirector.GetGenericBinding(motionTrack),
+                    Is.SameAs(previewMotionAnimator));
+                Assert.That(previewAuthoredVirtualCamera.enabled, Is.False);
+                Assert.That(authoredVirtualCamera.enabled, Is.True);
+                Assert.That(
+                    previewMotionDirector.playableAsset,
+                    Is.SameAs(motionTimeline));
+                Assert.That(
+                    motionTimeline.GetOutputTracks(),
+                    Does.Contain(authoredCameraTrack));
+                Assert.That(
+                    motionTimeline.GetOutputTracks(),
+                    Does.Contain(motionTrack));
+                Assert.That(
+                    motionDirector.GetGenericBinding(authoredCameraTrack),
+                    Is.SameAs(authoredBrain));
+                Assert.That(
+                    motionDirector.GetGenericBinding(motionTrack),
+                    Is.SameAs(motionAnimator));
+                Assert.That(
+                    motionDirector.playableAsset,
+                    Is.SameAs(motionTimeline));
+                Assert.That(
+                    EditorUtility.IsDirty(motionTimeline),
+                    Is.EqualTo(motionTimelineWasDirty));
+
+                AICameraTimelinePreviewImporter.RestoreAuthoredCinemachineState(
+                    suppressionState);
+
+                Assert.That(
+                    previewMotionDirector.GetGenericBinding(authoredCameraTrack),
+                    Is.SameAs(authoredBrain));
+                Assert.That(
+                    previewMotionDirector.GetGenericBinding(motionTrack),
+                    Is.SameAs(previewMotionAnimator));
+                Assert.That(previewAuthoredVirtualCamera.enabled, Is.True);
+                Assert.That(authoredVirtualCamera.enabled, Is.True);
+            }
+            finally
+            {
+                Object.DestroyImmediate(previewObject);
+                Object.DestroyImmediate(sourceObject);
+                Object.DestroyImmediate(cameraObject);
+                Object.DestroyImmediate(motionTimeline);
+                Object.DestroyImmediate(sourceTimeline);
+            }
+        }
+
+        [Test]
+        public void PreviewCloneKeepsParentGeneratedCinemachineBinding()
+        {
+            var sourceObject = new GameObject("Source Director");
+            var motionObject = new GameObject("Motion Director");
+            var generatedCameraObject = new GameObject("Generated Camera");
+            var authoredCameraObject = new GameObject("Authored Camera");
+            motionObject.transform.SetParent(sourceObject.transform, false);
+            TimelineAsset sourceTimeline = null;
+            TimelineAsset motionTimeline = null;
+            GameObject previewObject = null;
+            try
+            {
+                var sourceDirector =
+                    sourceObject.AddComponent<PlayableDirector>();
+                sourceDirector.playOnAwake = false;
+                var motionDirector =
+                    motionObject.AddComponent<PlayableDirector>();
+                motionDirector.playOnAwake = false;
+                generatedCameraObject.AddComponent<Camera>();
+                var generatedBrain =
+                    generatedCameraObject.AddComponent<CinemachineBrain>();
+                authoredCameraObject.AddComponent<Camera>();
+                var authoredBrain =
+                    authoredCameraObject.AddComponent<CinemachineBrain>();
+                sourceTimeline = CreateTimelineBoundToBrain(
+                    sourceDirector,
+                    generatedBrain,
+                    AICameraTimelinePreviewImporter.GeneratedCinemachineTrackName);
+                motionTimeline = CreateTimelineBoundToBrain(
+                    motionDirector,
+                    authoredBrain,
+                    "Authored Camera Track");
+                var generatedTrack = sourceTimeline.GetOutputTracks()
+                    .OfType<CinemachineTrack>()
+                    .Single();
+                var authoredTrack = motionTimeline.GetOutputTracks()
+                    .OfType<CinemachineTrack>()
+                    .Single();
+
+                previewObject = Object.Instantiate(sourceObject);
+                var previewDirector =
+                    previewObject.GetComponent<PlayableDirector>();
+                var previewMotionDirector = previewObject.transform
+                    .Find(motionObject.name)
+                    .GetComponent<PlayableDirector>();
+
+                AICameraTimelinePreviewImporter
+                    .SuppressAuthoredCinemachineOutputsForEditor(
+                        previewDirector);
+
+                Assert.That(
+                    previewDirector.GetGenericBinding(generatedTrack),
+                    Is.SameAs(generatedBrain));
+                Assert.That(
+                    previewMotionDirector.GetGenericBinding(authoredTrack),
+                    Is.Null);
+                Assert.That(
+                    sourceDirector.GetGenericBinding(generatedTrack),
+                    Is.SameAs(generatedBrain));
+                Assert.That(
+                    motionDirector.GetGenericBinding(authoredTrack),
+                    Is.SameAs(authoredBrain));
+            }
+            finally
+            {
+                Object.DestroyImmediate(previewObject);
+                Object.DestroyImmediate(sourceObject);
+                Object.DestroyImmediate(generatedCameraObject);
+                Object.DestroyImmediate(authoredCameraObject);
+                Object.DestroyImmediate(motionTimeline);
+                Object.DestroyImmediate(sourceTimeline);
+            }
+        }
+
+        [Test]
+        public void FinalSuppressionDoesNotCreatePartialUndoEntry()
+        {
+            var destinationObject = new GameObject("Destination Director");
+            var motionObject = new GameObject("Motion Director");
+            var authoredVirtualCameraObject =
+                new GameObject("Authored Virtual Camera");
+            var outputCameraObject = new GameObject("Output Camera");
+            var undoSentinelObject = new GameObject("Undo Sentinel");
+            motionObject.transform.SetParent(destinationObject.transform, false);
+            authoredVirtualCameraObject.transform.SetParent(
+                motionObject.transform,
+                false);
+            var destinationTimeline =
+                ScriptableObject.CreateInstance<TimelineAsset>();
+            TimelineAsset motionTimeline = null;
+            try
+            {
+                var destinationDirector =
+                    destinationObject.AddComponent<PlayableDirector>();
+                destinationDirector.playableAsset = destinationTimeline;
+                var motionDirector =
+                    motionObject.AddComponent<PlayableDirector>();
+                var authoredVirtualCamera = authoredVirtualCameraObject
+                    .AddComponent<CinemachineCamera>();
+                outputCameraObject.AddComponent<Camera>();
+                var brain = outputCameraObject.AddComponent<CinemachineBrain>();
+                motionTimeline = CreateTimelineBoundToBrain(
+                    motionDirector,
+                    brain,
+                    "Authored Camera Track");
+                var cameraTrack = motionTimeline.GetOutputTracks()
+                    .OfType<CinemachineTrack>()
+                    .Single();
+
+                Undo.ClearAll();
+                Undo.IncrementCurrentGroup();
+                var sentinelGroup = Undo.GetCurrentGroup();
+                Undo.RegisterCompleteObjectUndo(
+                    undoSentinelObject.transform,
+                    "Final Suppression Undo Sentinel");
+                undoSentinelObject.transform.position = Vector3.one;
+                Undo.CollapseUndoOperations(sentinelGroup);
+                Undo.FlushUndoRecordObjects();
+                Undo.IncrementCurrentGroup();
+
+                AICameraTimelinePreviewImporter
+                    .SuppressAuthoredCinemachineOutputsForEditor(
+                        destinationDirector,
+                        false);
+                Undo.FlushUndoRecordObjects();
+
+                Assert.That(
+                    motionDirector.GetGenericBinding(cameraTrack),
+                    Is.Null);
+                Assert.That(authoredVirtualCamera.enabled, Is.False);
+
+                Undo.PerformUndo();
+
+                Assert.That(undoSentinelObject.transform.position, Is.EqualTo(Vector3.zero));
+                Assert.That(
+                    motionDirector.GetGenericBinding(cameraTrack),
+                    Is.Null);
+                Assert.That(authoredVirtualCamera.enabled, Is.False);
+            }
+            finally
+            {
+                Undo.ClearAll();
+                Object.DestroyImmediate(destinationObject);
+                Object.DestroyImmediate(outputCameraObject);
+                Object.DestroyImmediate(undoSentinelObject);
+                Object.DestroyImmediate(motionTimeline);
+                Object.DestroyImmediate(destinationTimeline);
+            }
+        }
+
+        [Test]
+        public void SuppressionRebuildsPlayingDirectorAndReleasesBrainOverride()
+        {
+            var sourceObject = new GameObject("Source Director");
+            var motionObject = new GameObject("Motion Director");
+            var authoredCameraObject = new GameObject("Authored Virtual Camera");
+            var outputCameraObject = new GameObject("Output Camera");
+            motionObject.transform.SetParent(sourceObject.transform, false);
+            authoredCameraObject.transform.SetParent(
+                motionObject.transform,
+                false);
+            var sourceTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            var motionTimeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            PlayableDirector motionDirector = null;
+            try
+            {
+                var sourceDirector =
+                    sourceObject.AddComponent<PlayableDirector>();
+                sourceDirector.playOnAwake = false;
+                sourceDirector.playableAsset = sourceTimeline;
+                motionDirector = motionObject.AddComponent<PlayableDirector>();
+                motionDirector.playOnAwake = false;
+                motionDirector.timeUpdateMode = DirectorUpdateMode.Manual;
+                motionDirector.playableAsset = motionTimeline;
+                var authoredCamera =
+                    authoredCameraObject.AddComponent<CinemachineCamera>();
+                outputCameraObject.AddComponent<Camera>();
+                var brain = outputCameraObject.AddComponent<CinemachineBrain>();
+                brain.UpdateMethod = CinemachineBrain.UpdateMethods.ManualUpdate;
+
+                var track = motionTimeline.CreateTrack<CinemachineTrack>(
+                    null,
+                    "Authored Camera Track");
+                var clip = track.CreateDefaultClip();
+                clip.start = 0d;
+                clip.duration = 1d;
+                var shot = clip.asset as CinemachineShot;
+                Assert.That(shot, Is.Not.Null);
+                var exposedName = new PropertyName("AuthoredCameraForSuppressionTest");
+                shot.VirtualCamera.exposedName = exposedName;
+                shot.VirtualCamera.defaultValue = authoredCamera;
+                motionDirector.SetReferenceValue(exposedName, authoredCamera);
+                motionDirector.SetGenericBinding(track, brain);
+
+                motionDirector.Play();
+                motionDirector.time = 0.25d;
+                motionDirector.Evaluate();
+                brain.ManualUpdate(100, 1f / 60f);
+
+                Assert.That(motionDirector.playableGraph.IsValid(), Is.True);
+                Assert.That(motionDirector.state, Is.EqualTo(PlayState.Playing));
+                Assert.That(brain.ActiveVirtualCamera, Is.SameAs(authoredCamera));
+                var suppressionState = AICameraTimelinePreviewImporter
+                    .CaptureAuthoredCinemachineState(sourceDirector);
+
+                AICameraTimelinePreviewImporter
+                    .SuppressAuthoredCinemachineOutputsForEditor(sourceDirector);
+                brain.ManualUpdate(101, 1f / 60f);
+
+                Assert.That(motionDirector.state, Is.EqualTo(PlayState.Playing));
+                Assert.That(motionDirector.time, Is.EqualTo(0.25d).Within(0.000001d));
+                Assert.That(motionDirector.GetGenericBinding(track), Is.Null);
+                Assert.That(authoredCamera.enabled, Is.False);
+                Assert.That(brain.ActiveVirtualCamera, Is.Not.SameAs(authoredCamera));
+
+                AICameraTimelinePreviewImporter.RestoreAuthoredCinemachineState(
+                    suppressionState);
+                brain.ManualUpdate(102, 1f / 60f);
+
+                Assert.That(motionDirector.state, Is.EqualTo(PlayState.Playing));
+                Assert.That(motionDirector.time, Is.EqualTo(0.25d).Within(0.000001d));
+                Assert.That(
+                    motionDirector.GetGenericBinding(track),
+                    Is.SameAs(brain));
+                Assert.That(authoredCamera.enabled, Is.True);
+                Assert.That(brain.ActiveVirtualCamera, Is.SameAs(authoredCamera));
+            }
+            finally
+            {
+                if (motionDirector != null)
+                {
+                    motionDirector.Stop();
+                }
+
+                Object.DestroyImmediate(sourceObject);
+                Object.DestroyImmediate(outputCameraObject);
+                Object.DestroyImmediate(motionTimeline);
+                Object.DestroyImmediate(sourceTimeline);
+            }
+        }
+
         [TestCase(false)]
         [TestCase(true)]
         public void GeneratedDirectorySupportsLegacyAndDeclaredHashes(
@@ -778,6 +1632,18 @@ namespace Streamingle.Editor.Tests
             }
         }
 
+        private static TimelineAsset CreateTimelineBoundToBrain(
+            PlayableDirector director,
+            CinemachineBrain brain,
+            string trackName)
+        {
+            var timeline = ScriptableObject.CreateInstance<TimelineAsset>();
+            var track = timeline.CreateTrack<CinemachineTrack>(null, trackName);
+            director.playableAsset = timeline;
+            director.SetGenericBinding(track, brain);
+            return timeline;
+        }
+
         private static string CreateGeneratedDirectory(bool includeHashes)
         {
             var directory = Path.Combine(

CameraAI~/package.json

@@ -1,6 +1,6 @@
 {
   "name": "com.mingle.cw-ai",
-  "version": "0.4.13",
+  "version": "0.4.14",
   "displayName": "Mingle Camera Work AI",
   "description": "Self-contained high-quality Unity Timeline camera generation with an embedded prepared reference library, per-shot editable clips, and A/B review tools.",
   "unity": "6000.0",

README.md

@@ -37,7 +37,7 @@ Install **Git and Git LFS before opening Unity**, then use **Add package from
 git URL** with:
 
 ```text
-https://kindnick-git.duckdns.org/mingle/streamingle-unity-utilities.git?path=/CameraAI~#v0.1.19
+https://kindnick-git.duckdns.org/mingle/streamingle-unity-utilities.git?path=/CameraAI~#v0.1.20
 ```
 
 The Camera AI package includes the complete Windows x64