I'm in the process of importing a number of sheet metal parts and I'm getting faulty faces/gaps on every one; can't be healed. This issue seems to be happening because the the flanges were modeled with coincident edges where they meet in the corners. A couple have coincident faces. I've tried several import options, but none have helped to fix this. I don't want to have to re-model every of these. I imagine this isn't too uncommon. Anyone have a work around/fix?