CreateDiff(MorphDiff) There seems to be a problem in the function.
This is a screenshot.
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CreateDiff(MorphDiff) There seems to be a problem in the function.
This is a screenshot.

Yes, thanks, this is a known issue and has been reported to the development team.
Look at the subtool preview window: there’s a hidden mask
I’ve been having this problem too, you need to clear hidden mask before subdivide the mesh.
Seems that CreateDiff function mask inside part/polygroup of the mesh (original MT mesh) and hide that mask.




In some cases, maybe because intersect vertices, flip mesh or something, just clear the mask don’t works, you need to Blur Mask several times before Clear it and then subdivide.

