I have a sheet metal piece that has 2 configurations, a left hand and a right hand. The right is defined by a sketch in an assembly, and the left is the mirrored body of the original with the original deleted. My problem is that when I am in the left hand configuration the Sheet Metal Feature duplicates itself and advances the counter on rebuild. I don't understand exactly what is causing this since I have done nothing unusual with this part. I just noticed it when I attempted to flatten the piece in that configuration and the flatten wouldn't rebuild and the name kept changing. Each time it creates a new one the old one(s) is suppressed. When in left hand configuration I only see the latest one since the old body has been deleted. When I go back to the right hand where everything has been created there is a suppressed sheet metal feature for each time I have rebuilt it. Any explanation to this would be appreciated. Its not an intricate part and I hadn't finished detailing it so I will just recreate it. But this is something I'd like to avoid repeating.
I've attached it to see if anyone can see if they can fix it or find a cause. I wouldn't be suprised to find that it was something on this machine at that.