Sheet Metal part. How do I make the item behave in the drawing file? I get everything set and the drawing shows the flattened and un-flattened state, as expected. When I close, and then reopen the drawing, the state changes. The flattened configuration is un-flattened, I go back to the part drawing and toggle the derived configuration, re-save and all is OK until I close and re-open the drawing. I am exhibiting the definition of “Crazy”. Anyone…help.