Yeah, in the second image a diffuse IBL is being used. I also notice the horde model ambient color is set to a grayish color, but the ambient strength is 0, so would that even matter? That ambient glow also was present in the first picture, but after applying postwork and increasing contrast, it got rid of most of it. That glow though is not present when gamma correction ticked off. So i'm not exactly sure what's causing it when GC is ticked on. This so far has only happened on this particular model too.