I am having trouble with setting the component line font for one particular part in a drawing sheet of an assembly. It seemed to be fine yesterday, but today when I went to keep working on the drawing, The layer & line properties I had set to that part no longer apply, and whenever I try to re-assign (click on part, RB, "component line font...", etc) It does not save the settings for that part. When I try it with any other part it works. When I try it on another sheet it works. Is there some sheet setting I've messed up inadvertently?