Ensure when restoring pre-animated state on Skeletal Mesh with Linked Anim Graph

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

Use the provided steps and project.

[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 []