Ah, I see what happened. KTH's Scourge does have that discoloration, but only for the fur. It looks like you imported the entire model, but you can import pieces at a time by exporting the mdl0, right click on the model, import existing object, etc. My Scourge model is basically green Sonic generations model with a jacket, different shoes, and glasses. I didn't use any part of the head, so this issue won't be present.
I did try to shape the glasses to be similar to the shape of his glasses (according to comics and official render), but I couldn't make those little ridges. I'm pretty happy with the way they look right now, so they'll probably stay the way they are.