I edited the U-shaped Countertop family a few months back so that the instance grip arrows show up at each end of the countertop instead of in the middle. I did this by placing the instance parameter dimensions on the end of the actual geometry instead of to ref planes. When I load this into a new, blank project, it works fine. However when I load it into a current project that was upgraded from a 2005 project (new phase), the grips at the ends of the countertop don't show up.
Any ideas why this might happen?