Export to a temp .obj and import from temp .obj

[micheus]

I had a few hours this week to work on this. The importer process is basically done, I'm just not sure about the UV mesh I generate be correct.

I tried to install their plugin on Blender 8 and the object in their sample file seems to be imported without the UV mesh information.
I tried also the Substance Painter, but despite their propose to use a txt file format that plugin looks for a "1.obj" file.

I need some way to compare the result, but no success till now. I already left a question in their page, but I'm not sure someone will answer.