I then scale it back down to 1. Export from mudbox, load as morph target, and dial resulting morph to 1. Here's the result... looks fine to me.

"Keeping the same scale all the way through is important. If you change the scale at any step, the MT will go wrong."

?

---

W10 Pro, HP Envy X360 Laptop, Intel Core i7-10510U, NVIDIA GeForce MX250, Intel UHD, 16 GB DDR4-2400 SDRAM, 1 TB PCIe NVMe M.2 SSD

Mudbox 2022, Adobe PS CC, Poser Pro 11.3, Blender 2.9, Wings3D 2.2.5

My Freestuff and Gallery at ShareCG