S4S texture flickering black, but Blender is fine

I edited an EA mesh's UV map in Blender so that its texture was larger and in a different place. Then changed the texture to a WIP version of what I wanted. In Blender, this is fine. However, in Sims 4 Studio, there is an area of flickering black, and in CAS it's a solid black square. Anyone know what could have caused this and if there's an easy fix?


Images here: imgur.com/a/KmMuQIf