The warning about incomplete UVs worries me a bit, but I‘m assuming that‘s just the unwelded Poser export being weird again. I‘ll try a welded export and see what that looks like.

Changing the stacked UVs to UDIM hadn’t crossed my mind. I would have done that years ago, but maybe there was some doubt then as whether UDIM was supported by all the commonly used tools.

In general, never hesitate to tell me something  that you find odd about the figure. That’s what betas are for.

-- I'm not mad at you, just Westphalian.