Ok. i made a new avatar in mixamo fuse. Imported that in blender. Removed for now all PBR sthings, because i where thinking that did create the problems. It did partly
But right now only the shoes look good. and everything else is also using the shoe texture. While it’s fine in blender. But complete wrong in the FBX viewer.
I do not see double uv maps assigned to one material. What did i forgot.
And yes, really time high fidelity get compatible with blender instead off maya.