Mixamo animation to Metahuman. I am getting same error message and can't move forward

Hello!

For the past few days, I have been learning how to retarget IK rig in unreal 5. I got the animation from Mixamo and retargeted that animation to my custom-created Metahuman. It was amusing till I hit a few problems.

I can’t seem to edit the fingers in IK retargeting without crashing while exporting. And I’m getting below errors every time I try to work on animation in the sequence. I tried it on a fresh new project and have the same crashing issue. I’m using Unreal 5.0.1.

LoginId:aae81864468e8a388ce850b388411dcd
EpicAccountId:12ab9a67c63c44e58f0e85157fef526d

Assertion failed: Message != nullptr [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Classes\Animation\AnimNodeBase.h] [Line: 243]

UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_MovieSceneTracks
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_MovieScene
UnrealEditor_Sequencer
UnrealEditor_Sequencer
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_UnrealEd
UnrealEditor_DisplayClusterEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

Thanks in Advance!

3 Likes

Same. I have encountered a few discussions, but no fixes. I’ve updated my graphics drivers, and UE5 to the latest release, and I get the same error (or almost identical). Alsways crashes on export from the IK rig retargeter.

Definitely looking for some solutions, or a fix from Epic.