This bug still applies in the new update! I believe foxes specifically may be fixed but the rest are still bugged.
Can confirm as a preview bedrock player on a windows PC. Camel animations are also broken, though foxes appear back to normal. This bug also existed in the previews April 29th update, but not the one or any before that.
Can confirm. Mob animations are extremely off, especially those from add-ons. I also checked my own tick speed (it was set to 1 as normal) and went to a separate world that everything had been previously functioning normal in to make sure it wasn’t a pack issue.
-a windows player
This also applies to almost all addon mobs as well