I am using the ufo2map -check on a new map I made and I'm trying to exercise out the common errors. I've got several "mixed face contents" errors, but its listing the brush number. In UFORadiant is there a way to identify the brush number from this error list, so I know which brush needs to be edited? Also how exactly do I fix this error when I run into it? The tutorial mentioned reducing brush count, but how do you fix the face contents?