Originally Posted by
DoTheBIM
See attached pic to explain how revit thinks in this regard. I created two rectangular extrusions and assigned a material to show oreintation. Only difference was where my first sketch line was located. Doesn't really help, and isn't really realistic to pay attention to where all your first sketch lines are, and it's very unrealistic to go back and redo a family to adjust the first sketch line with you've got things locked, constrained and joined to existing geometry. Revit will potentially throw all kinds of warnings at you for deleting stuff it was depending on. Sorry it's not much help other than giving a better understanding of what is happening.