I am trying to make a simple sheet metal part. I started with making the cut out shape as base flange an then tried bending it using sketched bend. The sketch was simply drawn on the face from one side to the other(coincident). When I try to select a stationary face, it selects the whole face, and not the part I klicked that is separated by the sketch. I have tried this in multiple ways on multiple parts now, and every time this happens. It doesn't show any error messages, only selects the whole face. Any ideas why this could happen?