(07-27-2017, 04:41 PM)Pingu! Wrote: Select "Flip UV-s" on export.
This is not a problem of UV but it's a simple problem of normals. Just flip the normals.
The problem is instead another one. That model seems have submeshes so the lower part of the model is fine while the other one need to be fixed. So if flipping all the normals doesn't work, you will have to find a 3d software or even noesis (I don't know if it can do it) to "unify" the normals of the model.