So everytime I log in to the server, I'm in my house where all my dog and cat pets are. But then sometimes either the dogs are completely fully solid white (even their eyes don't exist with their collar being the only thing with a colour). Or the cats become a solid colour, that colour depends on the colour that's found the most on it's original coat. (e.g. a black cat turns solid black, a white cat turns solid white.)

 What I expected to happen was...:
 My cats and dogs looking normal with a normal cat and wolf texture

 What actually happened was...:
 Instead they were a solid colour except for the collar, it stays dyed. Doesn't always happen.

 Steps to Reproduce:
 1. Find a cat or wolf and tame it.
2. Place it in your house or whatever.
3. Disconnect from the server with the cats or dogs sitting around you and quit the game.

4. Launch the game and reconnect to the server.

5. Your pets would appear a solid colour except for their collar.

6. Might take a few tries.

Steps to a temporary solution...:

 Change the language so the game reloads.

 Note: I'll upload pictures later because I can't do that right now. The version is 1.16.1 but I couldn't find that in the drop-down menu. I am on Optifine and I'm not sure if this affects this or not. I'll certainly try it on the 1.16.1 without Optifine.

EDIT: THIS SOMETIMES AFFECTS PLAYERS AS WELL.