I’m having an issue with animation retargeting using the IK Retargeter in UE 5.7 and I’m hoping someone can help me understand what’s going wrong.
Setup:
-
Source Skeletal Mesh: SKM_UEFN_Mannequin
-
Target 1: m_med_nrw_body_mocap (MetaHuman from GASP/Kellan preset) — retargeting works fine
-
Target 2: SKM_MHC_Wayne_BodyMesh (MetaHuman created by me in MetaHuman Creator, UE 5.7) — completely broken/deformed result
-
Both targets share the same skeleton (metahuman_base_skel)
-
Auto Generate Retargeter is enabled on both
The problem:
Since the warnings are identical on both targets but only the new SKM_MHC mesh is broken, the warnings don’t seem to be the root cause.
My suspicion is that the new has a different Retarget Base Pose baked into the skeletal mesh asset compared to the older m_med_nrw_* format, even though they share the same skeleton. The IK Retargeter appears to be sensitive to this difference when using Auto Generate.
Question:
What is the correct workflow for retargeting animations onto a MetaHuman created with the new MetaHuman Creator in UE 5.7?