IK Retargeted animation montages are broken after Editor restart

  1. Retarget animation montages
  2. Restart Editor
  3. Some montages are broken, trying to fix them, open
  4. Clicking on animation sequence results in crash
Log
LoginId:ef0026b6427e9b0b32744b8d0313f188
EpicAccountId:1dad2dd48d3440399a1e82282a46d90c

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x0000000000000028

UnrealEditor_Engine
UnrealEditor_DetailCustomizations
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_PropertyEditor
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_SlateCore
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

Try installing the debug symbols (in engine options of the epic launcher) to get a more in-depth error message. Right not it’s hard to narrow down the error

The same error leads to the thread

Where people pass in as a solution downgrading the RHI to Direct X 11. But it’s not an ideal solution.

By the way, yes, my friend can’t open the project without switching to DX11, but that doesn’t seem to have anything to do with my problem. The issue I have is with animations. I think I’ve solved it now by retargeting it again, but with different names. I will look further.