Trying to re-order variant property values for my component but the drag UI doesn't seem to work at all

Trying to re-order variant property values for my component but the drag UI doesn’t seem to work at all.

Reason I want to do this: I want my variants to be listed in a meaningful order with commonly used at the top.

I would also like to know what the issue is. I seem to be able to reorder via drag/drop some properties but not others.