Now I can’t enter my world because of llamas

So after launching the game for a second time I started to see carpets on llamas. I decided to change them in order to see if the problem fixed itself, but after changing carpets I still saw the carpets that I put on them before. And after launching the game again I can’t enter my world and the game crashes. 

Steps to reproduce: 

1. I changed the carpets
2. The texture didn’t change 
3. I saved my game and quit it 
4. I reentered the world (name of the world: Казахстан) 

Observed results: 

I crash 

Expected results: 

I enter my world like always (and carpets change normally)