I've been having issues with fasteners in my assemblies, and I'm wondering if anyone is having this problem. When I'm adding fasteners to my assemblies, and start adding mating conditions, sometimes the new mating conditions will cause existing mates to turn red or yellow. It's usually the parallel mate that causes this issue. If I delete it, and add it again, everything is fine. It's a little aggravating. I can still work, but it slows me down to have to delete the mates, and then re-mate them.