I am experiencing a persistent issue when using the new MetaHuman Creator inside Unreal Engine 5.6 with a custom body created in Wrap and Maya.
When I import my custom body as a Template in MetaHuman Creator, the neck area becomes stretched and deformed — specifically, the “neck_01” bone shifts upward significantly.
- The proportions of my body mesh match the original MetaHuman body.
- The seam between the head and body aligns perfectly in Maya.
Interestingly, if I only import my custom head and use the default MetaHuman body, everything aligns perfectly. The problem appears only when the body Template is applied, as it seems to override my neck area to match the built-in MetaHuman proportions, causing distortion.
I have confirmed:
- Mesh topology around the neck matches the original MetaHuman topology.
- Pivot positions and world coordinates for neck_01 match the standard model.
Could you please advise:
- Is there a known way to prevent MetaHuman Creator from rescaling the neck area when using a custom body?
- Are there specific topology or marker requirements for the neck region so that neck_01 stays in the correct position?
- Is this behavior expected in 5.6, or is it a bug that should be reported?