When Roblox updated my Dynamic Head to the new version I submitted through the Catalog Asset Update it lead to the icon of my face being set to the default Roblox smile with no mood. The face works and appears correctly in 3D view and in game. The icon is just incorrect.
Ideally this should have been updated by now? But if not, I’ll need a pointer to exactly where you’re seeing the wrong thumbnail so I can regenerate it.
I’ve just made a post about it, and they’re already investigating what might be causing this error. Unfortunately, my dynamic head still hasn’t been updated, but at least they’re looking into the case now.