I get an error when I try import my fbx models into substance painter.

[PepperPeach]

Hello, I've been trying to textured this model that i made in zbrush. I zrmeshed it and projected the high res model's detail onto the low poly one. I then uv unwrapped the models (and it's subtools), and tried to export it into SP. There was an error that one of sub tool's uv were....out of bounds i guess is the best way to say it. So i fixed it in blender, and tried again....but I still receive the same error. What should I be doing differently.

[CAGameDEV]

Did you try selecting all the faces and just packing it so it all goes back to your 1001 tile?

If you still cannot solve the issue can you share the mesh and I'll fix it.