obj. file is importing as a striped object :/

I made a 3D model in photoshop to put into dimensions. When I export the file I export it as a wavefront|obj file (obj.). When I import the obj. file into dimensions, for some reason the material on the object turns striped. If I add a material on top of the objects the stripes show underneath. I have no idea what's going on and I can't find anyone with the same problem. I feel like i'm making an easy mistake.