Morph Target problem with textures

Does Someone know how to solve this issue?
I have tried reimport, unlock normals, apply conform and soften edge to each blend shape, using fbx 2014/2015 and 2016.
I have done the blend shapes with the sculpting tools of Maya 2017 and exported with Game Exporter.
In the face works well but in the body there are artifacts.
Thanks.

https://…com/?v=cPLz0U_rQn4