I am having trouble getting copy with mates to work with concentric mates. I am often copying cylindrical components (valves, fittings) to new sketch lines (routings for pipes). Whenever I try to copy a concentric mate, I get the message "Selected entity not valid for current mating type".
Any idea why? Included is a model with 2 examples: one a part from a vendor, the other a simple extruded cylinder.