There is a crash that will occur when an empty Anim composite asset is being referenced in the Mesh component attached to a BP actor within a level sequence.
Crash also occurs in Live 5.4.4 - not a regression
Results: The editor will crash
UnrealEditor_Engine!FAnimMontageInstance::SetSequencerMontagePosition() [AnimMontage.cpp:2908] UnrealEditor_Engine!FAnimMontageInstance::PreviewSequencerMontagePosition() [AnimMontage.cpp:2950] UnrealEditor_MovieSceneTracks!UE::MovieScene::FEvaluateSkeletalAnimations::PreviewSetAnimPosition() [MovieSceneSkeletalAnimationSystem.cpp:896] UnrealEditor_MovieSceneTracks!UE::MovieScene::FEvaluateSkeletalAnimations::ApplyAnimations() [MovieSceneSkeletalAnimationSystem.cpp:677] UnrealEditor_MovieSceneTracks!UE::MovieScene::FEvaluateSkeletalAnimations::EvaluateSkeletalAnimations() [MovieSceneSkeletalAnimationSystem.cpp:548] UnrealEditor_MovieSceneTracks!UE::MovieScene::FEvaluateSkeletalAnimations::Run() [MovieSceneSkeletalAnimationSystem.cpp:478] UnrealEditor_MovieScene!UE::MovieScene::FScheduledTask::Run() [MovieSceneTaskScheduler.cpp:101] UnrealEditor_MovieScene!UE::MovieScene::FEntitySystemScheduler::PrerequisiteCompleted() [MovieSceneTaskScheduler.cpp:625] UnrealEditor_MovieScene!UE::MovieScene::FEntitySystemScheduler::CompleteTask() [MovieSceneTaskScheduler.cpp:585] UnrealEditor_MovieScene!UE::MovieScene::FScheduledTask::Run() [MovieSceneTaskScheduler.cpp:160] UnrealEditor_MovieScene!UE::MovieScene::FEntitySystemScheduler::ExecuteTasks() [MovieSceneTaskScheduler.cpp:502] UnrealEditor_MovieScene!FMovieSceneEntitySystemRunner::GameThread_EvaluationPhase() [MovieSceneEntitySystemRunner.cpp:1080] UnrealEditor_MovieScene!FMovieSceneEntitySystemRunner::FlushNext() [MovieSceneEntitySystemRunner.cpp:375] UnrealEditor_MovieScene!FMovieSceneEntitySystemRunner::FlushOutstanding() [MovieSceneEntitySystemRunner.cpp:512] UnrealEditor_MovieScene!FMovieSceneRootEvaluationTemplateInstance::EvaluateSynchronousBlocking() [MovieSceneEvaluationTemplateInstance.cpp:186] UnrealEditor_Sequencer!FSequencer::EvaluateInternal() [Sequencer.cpp:3551] UnrealEditor_Sequencer!FSequencer::NotifyMovieSceneDataChanged() [Sequencer.cpp:2638] UnrealEditor_Sequencer!FMovieSceneTrackEditor::AnimatablePropertyChanged() [MovieSceneTrackEditor.cpp:138] UnrealEditor_MovieSceneTools!FSkeletalAnimationTrackEditor::OnAnimationAssetSelected() [SkeletalAnimationTrackEditor.cpp:2122] UnrealEditor_MovieSceneTools!UE::Core::Private::Tuple::TTupleBase<TIntegerSequence<unsigned int,0,1>,TArray<FGuid,TSizedDefaultAllocator<32> >,UMovieSceneTrack *>::ApplyAfter<void (__cdecl FSkeletalAnimationTrackEditor::*const &) [Tuple.h:317] UnrealEditor_MovieSceneTools!TBaseRawMethodDelegateInstance<0,FSkeletalAnimationTrackEditor,void __cdecl(FAssetData const &) [DelegateInstancesImpl.h:535] UnrealEditor_ContentBrowser!SAssetPicker::HandleItemSelectionChanged() [SAssetPicker.cpp:584] UnrealEditor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetPicker,1,void __cdecl(FContentBrowserItem const &,enum ESelectInfo::Type) [DelegateInstancesImpl.h:299] UnrealEditor_ContentBrowser!TDelegate<void __cdecl(FContentBrowserItem const &,enum ESelectInfo::Type) [DelegateSignatureImpl.inl:634] UnrealEditor_ContentBrowser!SAssetView::AssetSelectionChanged() [SAssetView.cpp:5188] UnrealEditor_ContentBrowser!TBaseSPMethodDelegateInstance<0,SAssetView,1,void __cdecl(TSharedPtr<FAssetViewItem,1>,enum ESelectInfo::Type) [DelegateInstancesImpl.h:299] UnrealEditor_ContentBrowser!SListView<TSharedPtr<FAssetViewItem,1> >::Private_SignalSelectionChanged() [SListView.h:1007] UnrealEditor_ContentBrowser!STableRow<TSharedPtr<FAssetViewItem,1> >::OnMouseButtonUp() [STableRow.h:597] UnrealEditor_Slate!`FSlateApplication::RoutePointerUpEvent'::`8'::<lambda_2>::operator() [SlateApplication.cpp:5341] UnrealEditor_Slate!FEventRouter::Route<FReply,FEventRouter::FToLeafmostPolicy,FPointerEvent,`FSlateApplication::RoutePointerUpEvent'::`8'::<lambda_2> >() [SlateApplication.cpp:456] UnrealEditor_Slate!FSlateApplication::RoutePointerUpEvent() [SlateApplication.cpp:5327] UnrealEditor_Slate!FSlateApplication::ProcessMouseButtonUpEvent() [SlateApplication.cpp:5912] UnrealEditor_Slate!FSlateApplication::OnMouseUp() [SlateApplication.cpp:5868] UnrealEditor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [WindowsApplication.cpp:2271] UnrealEditor_ApplicationCore!FWindowsApplication::DeferMessage() [WindowsApplication.cpp:2783] UnrealEditor_ApplicationCore!FWindowsApplication::ProcessMessage() [WindowsApplication.cpp:1944] UnrealEditor_ApplicationCore!FWindowsApplication::AppWndProc() [WindowsApplication.cpp:945] UnrealEditor_ApplicationCore!FWindowsPlatformApplicationMisc::PumpMessages() [WindowsPlatformApplicationMisc.cpp:145] UnrealEditor!FEngineLoop::Tick() [LaunchEngineLoop.cpp:5782] UnrealEditor!GuardedMain() [Launch.cpp:188] UnrealEditor!GuardedMainWrapper() [LaunchWindows.cpp:123] UnrealEditor!LaunchWindowsStartup() [LaunchWindows.cpp:277] UnrealEditor!WinMain() [LaunchWindows.cpp:317] UnrealEditor!__scrt_common_main_seh() [exe_common.inl:288]
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-225989 in the post.
| 0 |
| Component | UE - Anim - Sequencer |
|---|---|
| Affects Versions | 5.5 |
| Target Fix | 5.6 |
| Fix Commit | 36710824 |
|---|
| Created | Sep 27, 2024 |
|---|---|
| Resolved | Sep 30, 2024 |
| Updated | Feb 5, 2025 |