I'm not sure whether this has been mentioned or potentially already resolved, but in one of my playthroughs I had problems with encumbrance if I wildshaped into a smaller animal.
This hasn't been fixed yet. Hopefully next patch!
I even got disadvantage in conversation from it! The updated cat form is adorable, though!
![[Linked Image from i.imgur.com]](https://i.imgur.com/BatFQ6B.png)