KotOR II Model editing in Blender

[Letstrit]

Hey there y'all!

Been playing KotOR since it's release, great games that don't get old. 

Trying to get into modding TSL. Have little to no modelling experience, thus not going to attempt anything complex yet, but a sinple model adjustment seems to be over my head right now. 

I'm resmeshing and retexturing an existing body model in Blender using Kotor tool, it goes pretty well until I get to texturing. I just can't get new UV map to work when exporting .mdl and .mdx. It seems that my custom UV unwrap overwrites any existing UV map, but does not save the new one. The model in game is transparent, like non-existent, just the head floating.

What am I doing wrong? How do I get the new UV map ant texture to work? 

Edited 3 hours ago by Letstrit