'Adapt Neck' option missing in 5.7

Summary

When conforming a template mesh in the Metahuman creator, UE 5.6 had the option ‘Adapt Neck’ which I usually uncheck to have my model not being altered. In 5.7 this option is no longer available. Is this by design? How do I get the same unaltered result?

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Character

Steps to Reproduce

  1. Open UE with all Metahuman plugins and core enabled.
  2. Create a new Metahuman character
  3. Select Head editing
  4. Select ‘Conform’ → ‘From Template’

Expected Result

For there to be an ‘Adapt Neck’ tick box

Observed Result

‘Adapt Neck’ tick box missing

Platform(s)

Windows 10 & 11

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Hey!

The implementation of the Adapt Neck option was changed in Unreal Engine 5.7 to enable conforming the body from a wider range of poses (previously it was limited to the MetaHuman A-Pose).

As a workaround, you would need to conform your custom (non-MetaHuman body) to the MetaHuman body topology, matching the body and head neck. Then, when you bring both into MetaHuman Creator, the neck area will be conformed appropriately, instead of blended with our base body. You can then discard the MetaHuman body and continue working with the head.

We have heard a feedback about how changing the Adapt Neck option has impacted various workflows where the MetaHuman body is not being used. This is an area we intend to improve on for Unreal Engine 5.8 based on what we’ve heard from users.

Hope that helps!

Cheers
James

Both my body and head meshes already have the Metahuman topology and are 100% aligned (no gap/seam).

My problem is that in 5.7 the conforming process is still altering the neck slightly from the template mesh. How can I make sure that it’s not being changed at all? Just like in 5.6 with Adapt Neck unchecked.

same issues for me i have no idea how to fix it