Textures baked incorrect, broken. Substance painter doesn't bake mesh maps properly.

[Zenzenc]

I've created model of the guitar in Maya, grouped everything in outliner, created UV map, assigned one lambert to the first file "guitar_low" and other 6 lamberts to the file "guitar_high" than exported them to 2 fbx files, named as "guitar_low" and "guitar_high". Then I uploaded file "guitar_low", before baking I uploaded "guitar_high" to "High Definition meshes" and this is a result, something went wrong. Before exporting I've deleted all the history in maya and freezed meshes, I've tried to bake each file individually, but nothing has changed. Please help, I'm trying to fix it all the week... If you know how to solve this problem, please describe in as much detail as possible how to solve it. Thanks.