trange behavior of various elements in the game

Hello, I would like to report a bug in minecraft with the latest update 1.16.210. I was playing on my server and suddenly I saw such bugs, the dial looked very strange things in the hands were also unnaturally positioned. I do not know if a leash should behave like this, namely when you take a mob on a leash, you do not have to have it in your hand. In the files I am sending bugs that have encountered me with the new update. Regards, and I hope these bugs will be fixed.