Hello, I have here one object I try to export to be used on substance painter but it gives me UV problems...
The UVs are really basic, I tried several ways but this piece gives me all the time problems. I have no other problems doing exactly the same with other models.
I left the file, maybe that way could be identified better the problem.
* the site does not allow me to upload the file? I used instead my mediafire account https://www.mediafire.com/file/1xbgj1ntzn2knk2/5832.max/file