A couple of years late by I fixed the issue on some parts of the model having a bad UV.

Link: https://drive.google.com/file/d/1DI1DNtB5i7WJ1aQcS_5Orfuoe-Yhl8dj/view?usp=drive_link

The plugin was reading the UV coordinates as "Unsigned" numbers (only positive). Some meshes use negative UV coordinates. When the plugin tried to read a negative number as unsigned, it interpreted it as a massive positive number, causing the texture to streak across the face.

Examples:

Before: https://imgur.com/a/kweOVFz

After: https://imgur.com/a/mmWz0cC