Unreal Engine Issues and Bug Tracker (UE-42385)

Description

Error message:

Stack overflow - code c00000fd (first/second chance not available)

Source Context:

   74       void UAnimComposite::GetAnimationPose(FCompactPose& OutPose, FBlendedCurve& OutCurve, const FAnimExtractContext& ExtractionContext) const
   75       {
   76       AnimationTrack.GetAnimationPose(OutPose, OutCurve, ExtractionContext);
   77       
   78       FBlendedCurve CompositeCurve;
   79       CompositeCurve.InitFrom(OutCurve);
   80       EvaluateCurveData(CompositeCurve, ExtractionContext.CurrentTime);
   81       
   82       // combine both curve
   83       OutCurve.Combine(CompositeCurve);
   84       }
   85       
   86       EAdditiveAnimationType UAnimComposite::GetAdditiveAnimType() const
   87       {
   88 ***** int32 AdditiveType = AnimationTrack.GetTrackAdditiveType();
   89       
   90       if (AdditiveType != -1)
   91       {
   92       return (EAdditiveAnimationType)AdditiveType;
   93       }
   94       
   95       return AAT_None;
   96       }
   97       
   98       void UAnimComposite::EnableRootMotionSettingFromMontage(bool bInEnableRootMotion, const ERootMotionRootLock::Type InRootMotionRootLock)
   99       {
  100       AnimationTrack.EnableRootMotionSettingFromMontage(bInEnableRootMotion, InRootMotionRootLock);
  101       }
  102       
  103       bool UAnimComposite::HasRootMotion() const

Most recent user affected CL: 3249277

Logs: see attached

CrashReporter User Descriptions:

EUS Matt.Williams - Add an AnimComposite to it's own timeline

Steps to Reproduce

Create a third person template project
Create an Anim Composite on the Mannequin Skeleton
Add one animation to the composite track
Add the AnimComposite itself to the composite track (you'll see an error)
Drag the AnimComposite to the left to place it in front of the animation

Result: Crash
Expected: Not allowed to add an AnimComposite to itself

Callstack

UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:89]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]
UE4Editor_Engine!UAnimComposite::GetAdditiveAnimType() [animcomposite.cpp:91]

Community References

Recursive animation composite causes crash

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Fixed

Component	OLD - Anim
Affects Versions	4.12, 4.14, 4.15
Target Fix	4.15.1

Fix Commit	3323618

Created	Feb 24, 2017
Resolved	Feb 27, 2017
Updated	May 18, 2020

UE-42385

Crash adding an AnimComposite to itself

Crash adding an AnimComposite to itself

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