Can’t understand why this has started happening, but imagine a mesh of a typical policeman’s cap/hat where the top comes to a point in the middle. All the edges coming from the perimeter of the hat converge to one vertex at top center. The hat and head are just part of the same mesh, and the neck has a couple of keyframes so the head turns slightly to one side, which works fine. The hat itself has no keyframes since it’s just part of the head.
As of today, within a few frames that one center vertex at the top of the hat suddenly becomes two…three…four or more different vertices that spread apart slightly and rearrange their xyz positions. I haven’t keyed anything to do with the hat, let alone that vertex, that might make random vertices appear out of nowhere.
I’m not a guru at Maya modeling, but I’ve done this enough and never had this difficulty before. When I merge vertices they stayed merged…so why they would pop out of nowhere and spread out is new to me. Any suggestions on how to check for where or what might be creating them so I can fix this would be greatly appreciated.