Rendering glitches on Adobe Dimensions shadows

Hello,

I have been having the same recurring issue when importing custom made 3D models into Adobe Dimensions, I keep getting these weirds almost shadows that just appear in almost fixed positions on my objects. These shadows move around the object as I change the camera angle as well. They behave the same with the handle removed and this same thing happens when I attach decals to the object. Any idea how to fix this or what it could be?