I have a model that has issue's with a filtet from one config to the next. I am building a cored passage housing. The way we do it is we design the inner and then the outer around the inner. We then subtract the inner from the outer. That is the casting configuration. After the subtraction, we do our final machining. Everything should roll together as if it were one configuration but my machined configuration is happy but if I change to my casting config (using the config manager tab) a couple fillets have errors. Just simply rolling back before the combine (subtraction) in the machined config everyone is happy. Why do things fail by just using the config manager tab?