Stack overflow at Use selected asset from Content Browser

Hello. There is a crash (stack overflow) at click on the button “Use selected asset from Content Browser” in the animation montage editor (4.11.2).

Repro steps :

  1. In the third person blank project in the folder Mannequin/Animations create new animation montage.

  2. Open montage in Persona.

  3. Create one section from ThirdPesonIdle animation track.

  4. Click on the section in the sections band.

  5. On the Details panel near Animation Reference click to arrow (“Use selected asset from Content Browser”). There is a stack overflow.

    UE4Editor-Engine-Win64-Debug.dll!UAnimMontage::IsValidAdditive() Line 695 C++
    UE4Editor-Engine-Win64-Debug.dll!FAnimTrack::IsAdditive() Line 283 C++
    UE4Editor-Engine-Win64-Debug.dll!UAnimMontage::IsValidAdditive() Line 695 C++
    UE4Editor-Engine-Win64-Debug.dll!FAnimTrack::IsAdditive() Line 283 C++
    UE4Editor-Engine-Win64-Debug.dll!UAnimMontage::IsValidAdditive() Line 695 C++
    UE4Editor-Engine-Win64-Debug.dll!FAnimTrack::IsAdditive() Line 283 C++
    UE4Editor-Engine-Win64-Debug.dll!UAnimMontage::IsValidAdditive() Line 695 C++
    The maximum number of stack frames supported by Visual Studio has been exceeded.

Hey v.s.,

I’ve reproduced this and entered it as UE-31039. Thanks for reporting this!

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