Textures are weird when imported from substance painter
Looks like a Height problem to me. I fixed this by lowering the Height value in shape>arnold>displacement attribute.
It is at 1 by default, here i set it to 0.3. I believe Substance doesnt really display height, it simply creates an illusion to give you an idea, so you might be using height a little bit to harshly. Tell me if it helps !
