Hey guys,
I bake often with substance Painter, but with really simple mesh, I've an issue... the bake is totally wrong...

the HP has nothing particular.....

Usually, this issue is the wrong Groupsmooth but here, 1 UVISLAND = 1 Groupsmooth
I tried with a unique groupsmooth, same result...

No overlapped uv, no invertex poly, all is reset X formed...
I'm out of idea.... and you ? :disappointed:
Thanks, and have a nice week