Here's the best video I could get. Head movement was a little less in this video than it has been but there is still a slight wobble. When I try to pick him up his head wobbles a lot more. I flipped it over and it didn't try to fix itself for a little while, then it only flipped its head back over and not the rest of its body.
https://www.youtube.com/watch?v=ViM571dwhkU
https://imgur.com/a/0xB8A