Description
  1. Download and launch attached project
  2. PIE
  3. Press the "E" key to play the sequence
  4. Wait until sequence finishes

RESULT

Ensure in FAnimInstanceProxy::GetSkeleton as a result of restore state calling UnbindFromSkeletalMeshComponent

Steps to Reproduce

Use the provided steps and project.

Callstack

[2020.07.20-16.37.51:072][523]LogOutputDevice: Error: === Handled ensure: ===
[2020.07.20-16.37.51:074][523]LogOutputDevice: Error:
[2020.07.20-16.37.51:076][523]LogOutputDevice: Error: Ensure condition failed: Skeleton [Link Removed] [Line: 332]
[2020.07.20-16.37.51:079][523]LogOutputDevice: Error:
[2020.07.20-16.37.51:080][523]LogOutputDevice: Error: Stack:
[2020.07.20-16.37.51:081][523]LogOutputDevice: Error: [Callstack] 0x00007ffdd61644db UE4Editor-Core-Win64-Debug.dll!FDebug::OptionallyLogFormattedEnsureMessageReturningFalseImpl() [E:\_Release4.25\Engine\Source\Runtime\Core\Private\Misc\AssertionMacros.cpp:491]
[2020.07.20-16.37.51:083][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc6097f8b UE4Editor-Engine-Win64-Debug.dll!<lambda_5906599b3ca605b3262f6a29dd36f9b3>::operator()() [E:\_Release4.25\Engine\Source\Runtime\Engine\Public\Animation\AnimInstanceProxy.h:332]
[2020.07.20-16.37.51:085][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc6094784 UE4Editor-Engine-Win64-Debug.dll!DispatchCheckVerify<bool,<lambda_5906599b3ca605b3262f6a29dd36f9b3> >() [E:\_Release4.25\Engine\Source\Runtime\Core\Public\Misc\AssertionMacros.h:162]
[2020.07.20-16.37.51:087][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d266d8 UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::GetSkeleton() [E:\_Release4.25\Engine\Source\Runtime\Engine\Public\Animation\AnimInstanceProxy.h:332]
[2020.07.20-16.37.51:089][523]LogOutputDevice: Error: [Callstack] 0x00007ffdafa4913c UE4Editor-AnimGraphRuntime-Win64-Debug.dll!FAnimNode_SkeletalControlBase::Update_AnyThread() [E:\_Release4.25\Engine\Source\Runtime\AnimGraphRuntime\Private\BoneControllers\AnimNode_SkeletalControlBase.cpp:111]
[2020.07.20-16.37.51:091][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f3d4f1 UE4Editor-Engine-Win64-Debug.dll!FPoseLinkBase::Update() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNodeBase.cpp:350]
[2020.07.20-16.37.51:092][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f4fa39 UE4Editor-Engine-Win64-Debug.dll!FAnimNode_ConvertComponentToLocalSpace::Update_AnyThread() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNodeSpaceConversions.cpp:25]
[2020.07.20-16.37.51:093][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f3d4f1 UE4Editor-Engine-Win64-Debug.dll!FPoseLinkBase::Update() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNodeBase.cpp:350]
[2020.07.20-16.37.51:094][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f5043d UE4Editor-Engine-Win64-Debug.dll!FAnimNode_Root::Update_AnyThread() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNode_Root.cpp:30]
[2020.07.20-16.37.51:095][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d7f65d UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::UpdateAnimationNode_WithRoot() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstanceProxy.cpp:59]
[2020.07.20-16.37.51:096][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d7f487 UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::UpdateAnimationNode() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstanceProxy.cpp:43]
[2020.07.20-16.37.51:097][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d827f7 UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::UpdateAnimation_WithRoot() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstanceProxy.cpp:1290]
[2020.07.20-16.37.51:100][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f4fe3e UE4Editor-Engine-Win64-Debug.dll!FAnimNode_LinkedAnimGraph::Update_AnyThread() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNode_LinkedAnimGraph.cpp:114]
[2020.07.20-16.37.51:101][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f3d4f1 UE4Editor-Engine-Win64-Debug.dll!FPoseLinkBase::Update() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNodeBase.cpp:350]
[2020.07.20-16.37.51:102][523]LogOutputDevice: Error: [Callstack] 0x00007ffdafa493ed UE4Editor-AnimGraphRuntime-Win64-Debug.dll!FAnimNode_Slot::Update_AnyThread() [E:\_Release4.25\Engine\Source\Runtime\AnimGraphRuntime\Private\AnimNodes\AnimNode_Slot.cpp:49]
[2020.07.20-16.37.51:102][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f3d4f1 UE4Editor-Engine-Win64-Debug.dll!FPoseLinkBase::Update() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNodeBase.cpp:350]
[2020.07.20-16.37.51:103][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1f5043d UE4Editor-Engine-Win64-Debug.dll!FAnimNode_Root::Update_AnyThread() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimNode_Root.cpp:30]
[2020.07.20-16.37.51:105][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d7f65d UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::UpdateAnimationNode_WithRoot() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstanceProxy.cpp:59]
[2020.07.20-16.37.51:107][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d7f487 UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::UpdateAnimationNode() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstanceProxy.cpp:43]
[2020.07.20-16.37.51:108][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d827f7 UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::UpdateAnimation_WithRoot() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstanceProxy.cpp:1290]
[2020.07.20-16.37.51:111][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d78e1f UE4Editor-Engine-Win64-Debug.dll!FAnimInstanceProxy::UpdateAnimation() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstanceProxy.cpp:1220]
[2020.07.20-16.37.51:112][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d3fe22 UE4Editor-Engine-Win64-Debug.dll!UAnimInstance::ParallelUpdateAnimation() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstance.cpp:622]
[2020.07.20-16.37.51:113][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc1d7e614 UE4Editor-Engine-Win64-Debug.dll!UAnimInstance::UpdateAnimation() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\Animation\AnimInstance.cpp:506]
[2020.07.20-16.37.51:114][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb38662a7 UE4Editor-MovieSceneTracks-Win64-Debug.dll!FAnimCustomInstanceHelper::UnbindFromSkeletalMeshComponent<UAnimSequencerInstance>() [E:\_Release4.25\Engine\Source\Runtime\AnimGraphRuntime\Public\AnimCustomInstanceHelper.h:238]
[2020.07.20-16.37.51:115][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb39926f3 UE4Editor-MovieSceneTracks-Win64-Debug.dll!`FPreAnimatedAnimationTokenProducer::CacheExistingState'::`2'::FToken::RestoreState() [E:\_Release4.25\Engine\Source\Runtime\MovieSceneTracks\Private\Evaluation\MovieSceneSkeletalAnimationTemplate.cpp:131]
[2020.07.20-16.37.51:117][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3d55074 UE4Editor-MovieScene-Win64-Debug.dll!MovieSceneImpl::RestorePreAnimatedToken() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\Evaluation\MovieScenePreAnimatedState.cpp:61]
[2020.07.20-16.37.51:118][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3d52cc4 UE4Editor-MovieScene-Win64-Debug.dll!TMovieSceneSavedTokens<TInlineValue<IMovieScenePreAnimatedToken,32,8> >::RestoreEntity() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\Evaluation\MovieScenePreAnimatedState.cpp:283]
[2020.07.20-16.37.51:122][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3d54b6d UE4Editor-MovieScene-Win64-Debug.dll!FMovieScenePreAnimatedState::RestorePreAnimatedStateImpl() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\Evaluation\MovieScenePreAnimatedState.cpp:400]
[2020.07.20-16.37.51:123][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3c5cd7a UE4Editor-MovieScene-Win64-Debug.dll!FMovieSceneRootEvaluationTemplateInstance::CallSetupTearDown() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\Evaluation\MovieSceneEvaluationTemplateInstance.cpp:544]
[2020.07.20-16.37.51:124][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3c5c3f6 UE4Editor-MovieScene-Win64-Debug.dll!FMovieSceneRootEvaluationTemplateInstance::CallSetupTearDown() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\Evaluation\MovieSceneEvaluationTemplateInstance.cpp:485]
[2020.07.20-16.37.51:125][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3caf8ae UE4Editor-MovieScene-Win64-Debug.dll!FMovieSceneRootEvaluationTemplateInstance::Finish() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\Evaluation\MovieSceneEvaluationTemplateInstance.cpp:213]
[2020.07.20-16.37.51:126][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3d7f2b7 UE4Editor-MovieScene-Win64-Debug.dll!UMovieSceneSequencePlayer::StopInternal() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\MovieSceneSequencePlayer.cpp:333]
[2020.07.20-16.37.51:127][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3d87bd9 UE4Editor-MovieScene-Win64-Debug.dll!UMovieSceneSequencePlayer::UpdateTimeCursorPosition_Internal() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\MovieSceneSequencePlayer.cpp:887]
[2020.07.20-16.37.51:128][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3d86fb4 UE4Editor-MovieScene-Win64-Debug.dll!UMovieSceneSequencePlayer::UpdateTimeCursorPosition() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\MovieSceneSequencePlayer.cpp:762]
[2020.07.20-16.37.51:129][523]LogOutputDevice: Error: [Callstack] 0x00007ffdb3d831f6 UE4Editor-MovieScene-Win64-Debug.dll!UMovieSceneSequencePlayer::Update() [E:\_Release4.25\Engine\Source\Runtime\MovieScene\Private\MovieSceneSequencePlayer.cpp:746]
[2020.07.20-16.37.51:133][523]LogOutputDevice: Error: [Callstack] 0x00007ffde42a48e1 UE4Editor-LevelSequence-Win64-Debug.dll!ALevelSequenceActor::Tick() [E:\_Release4.25\Engine\Source\Runtime\LevelSequence\Private\LevelSequenceActor.cpp:202]
[2020.07.20-16.37.51:134][523]LogOutputDevice: Error: [Callstack] 0x00007ffdc3817622 UE4Editor-Engine-Win64-Debug.dll!UWorld::Tick() [E:\_Release4.25\Engine\Source\Runtime\Engine\Private\LevelTick.cpp:1525]
[2020.07.20-16.37.51:136][523]LogOutputDevice: Error: [Callstack] 0x00007ffdd05c985c UE4Editor-UnrealEd-Win64-Debug.dll!UEditorEngine::Tick() [E:\_Release4.25\Engine\Source\Editor\UnrealEd\Private\EditorEngine.cpp:1693]
[2020.07.20-16.37.51:137][523]LogOutputDevice: Error: [Callstack] 0x00007ffdd1ccc4b9 UE4Editor-UnrealEd-Win64-Debug.dll!UUnrealEdEngine::Tick() [E:\_Release4.25\Engine\Source\Editor\UnrealEd\Private\UnrealEdEngine.cpp:414]
[2020.07.20-16.37.51:137][523]LogOutputDevice: Error: [Callstack] 0x00007ff7a0903fb4 UE4Editor-Win64-Debug.exe!FEngineLoop::Tick() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp:4850]
[2020.07.20-16.37.51:138][523]LogOutputDevice: Error: [Callstack] 0x00007ff7a08b3161 UE4Editor-Win64-Debug.exe!EngineTick() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\Launch.cpp:63]
[2020.07.20-16.37.51:140][523]LogOutputDevice: Error: [Callstack] 0x00007ff7a08c180f UE4Editor-Win64-Debug.exe!GuardedMain() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\Launch.cpp:172]
[2020.07.20-16.37.51:140][523]LogOutputDevice: Error: [Callstack] 0x00007ff7a09128c5 UE4Editor-Win64-Debug.exe!WinMain() [E:\_Release4.25\Engine\Source\Runtime\Launch\Private\Windows\LaunchWindows.cpp:257]
[2020.07.20-16.37.51:141][523]LogOutputDevice: Error: [Callstack] 0x00007ff7a0915bba UE4Editor-Win64-Debug.exe!__scrt_common_main_seh() [d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
[2020.07.20-16.37.51:145][523]LogOutputDevice: Error: [Callstack] 0x00007ffe26d37974 KERNEL32.DLL!UnknownFunction []
[2020.07.20-16.37.51:146][523]LogOutputDevice: Error: [Callstack] 0x00007ffe298fa271 ntdll.dll!UnknownFunction []

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Fixed
ComponentTools - Sequencer
Affects Versions4.25
Target Fix4.26
Fix Commit13966796
CreatedJul 20, 2020
ResolvedJul 29, 2020
UpdatedAug 27, 2020