[Substance Painter] All blending modes function as an add, even when set to something else

As the title says, I'm having an issue when switching blending types. I've got an edge wear effect going and I'm trying to multiply the curvature by a paint so I can paint it on, however, I can see the paint layer when I paint, AND I can see the edge wear everywhere. I've got the edge wear set to multiply. Same story with a layer of scratches, except I have it set to overlay.