Error when trying to retarget anim bueprints (Ark)

Development Character & Animation
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1

Hello,

I’m getting stuck and UE crashes when trying to retarget animations, any idea how to fix this?
Below the erro message i’m getting.

Thanks.

Assertion failed: InSkeletalMesh->RefSkeleton.GetNum() == SourceAtoms.Num() [File:F:\build\ARKModKit\Internal\Engine\Source\Runtime\Engine\Private\SkeletalMeshComponent.cpp] [Line: 943]

VERSION: 0.0
KERNELBASE.dll!UnknownFunction (0x00007ffb4d2d4ed9) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffacaf4fa0d) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffacae32b18) + 0 bytes [UnknownFile:0]
UE4Editor-Core.dll!UnknownFunction (0x00007ffacae04382) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab4adb5c9) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab4b00339) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab4b06bfe) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffab3548af1) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab4bf2a0e) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab4b19198) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab4b18ee5) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab44884b6) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab449aed1) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab4d239fe) + 0 bytes [UnknownFile:0]
UE4Editor-Engine.dll!UnknownFunction (0x00007ffab48aad71) + 0 bytes [UnknownFile:0]
UE4Editor-UnrealEd.dll!UnknownFunction (0x00007ffab3494a35) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01102) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-SlateCore.dll!UnknownFunction (0x00007ffacfa01192) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffacdeb5d15) + 0 bytes [UnknownFile:0]
UE4Editor-Slate.dll!UnknownFunction (0x00007ffacdeb55b3) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff754adb0db) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff754acfa9f) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff754acfb0a) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff754adc8ce) + 0 bytes [UnknownFile:0]
UE4Editor.exe!UnknownFunction (0x00007ff754add809) + 0 bytes [UnknownFile:0]
KERNEL32.DLL!UnknownFunction (0x00007ffb4ebd7034) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffb4f942651) + 0 bytes [UnknownFile:0]
ntdll.dll!UnknownFunction (0x00007ffb4f942651) + 0 bytes [UnknownFile:0]

2

Try to rename the animation’s root folder (Whatever the name of the anim set is), if you get a window where it says “Make Writable”, check that and it should work.