I have a multibody part with a crossmember made of sheet metal that I have copied several times to assume proper position. I want to take the highlighted crossmember (simply because it is a full piece rather that the cut off ones towards the front) and make a detail drawing of it in the flattened state. I made the drawing and inserted a view, then selected that body as the only one to show in said view. For some reason I keep getting a "this part contains features that cannot be unbent" message when I try to switch to flat pattern. I can flat pattern the very first crossmember, but it is cut in house so it won't present an accurate representation. I know this is possible, I created a new part with a patterened sheet metal feature and had no issues. What am I missing here?