Steps to Reproduce
  1. Add skeletal mesh to take recorder
  2. Add a valid timecode source using a media profile
  3. Set recording clock source to "Timecode"
  4. Set "Start at Current Timecode" to false
  5. Start recording

Engine will hang for a number of minutes or crash

 

If the editor doesn't crash recording will start but then saving will either take a number of minutes or crash (depending how far from zero the current timecode is)

Callstack

UnrealEditor_Core!FMallocMimalloc::OutOfMemory() [MallocMimalloc.h:52]
UnrealEditor_Core!FMallocMimalloc::Realloc() [MallocMimalloc.cpp:136]
UnrealEditor_Core!FMemory::Realloc() [FMemory.inl:56]
UnrealEditor_Engine!TArray<UE::Math::TVector<float>,TSizedDefaultAllocator<32> >::ResizeForCopy() [Array.h:2969]
UnrealEditor_Engine!FRawAnimSequenceTrack::FRawAnimSequenceTrack()
UnrealEditor_Engine!FCompressibleAnimData::FetchData() [AnimCompressionTypes.cpp:783]
UnrealEditor_Engine!UE::Anim::FAnimationSequenceAsyncCacheTask::BuildData() [AnimationCompressionDerivedData.cpp:212]
UnrealEditor_Engine!`UE::Anim::FAnimationSequenceAsyncCacheTask::EndCache'::`9'::<lambda_2>::operator() [AnimationCompressionDerivedData.cpp:164]

Community References

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Fixed
ComponentUE - Anim - Sequencer
Affects Versions5.1.15.2
Target Fix5.2
Fix Commit24432622
Main Commit24436767
Release Commit24432622
CreatedFeb 13, 2023
ResolvedFeb 27, 2023
UpdatedApr 29, 2023