Describe the bug you're experiencing

I've created modpack on 1.12.2 to play with friends, and encountered very weird glitch which detaching mobs models after player death. Models detaching only on client-side, and it looks like mobs are just frozen, but only their models just freeze and detach, when mobs themselves keeping work, which makes mobs invisible and they still can hurt you and etc.

This thing fixes when you reconnecting to server after death (but it will appear again if you will die). Also it fixes if you will delete OptiFine or Farsight.

Here's mods in modpack (i deleted Farsight bc of this issue, so you can't see it in modpack)

Reproducability

Just die ingame, and all mobs will froze.

Also it appears only on server, not in singleplayer or etc.

Mod up to date

• Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.12.2

Modloader version

Forge

Logs

Don't have logs

Optifine issue, farsight doesnt remotely touch models