I have an existing wall with an existing stone coping on top. The stone coping is a wall-hosted sweep. I want to add a metal coping on top of the stone coping. Since the stone coping is already at the very top of the wall, a wall sweep for the metal coping won't work. I need the metal coping sweep to be at the top edge of the stone coping.
So I created an in-place sweep, picking the edge of the wall-hosted stone coping as the path, and specifying a loaded profile. When I try to finish the sweep, I get an error "Elements can't be copied because they will lose their references", referring to the wall-hosted stone coping sweep.
I don't understand why this won't work.