Blender to Substance Substance Painter UV's

[Alex2764685085ny]

I made assets in Blender, export them as FBX and import them into Substance Painter,

However importing them into Substance Painter alters the UV maps and adds lines between vertices that aren't present in the Blender version. 

  

[davescm]

When you imported the file to Painter did you have 'Auto Unwrap' checked in the new project dialogue? If you want to use Blender's unwrap then uncheck that box.

Dave