Damage textures of sheep, slime, and mooshrooms does not appear when mob is damaged

What I expected to happen was...:
The texture of the mob to be tinted red when damaged.

What actually happened was...:
Slime texture became white, sheep coat texture became white, mooshroom mushrooms glitched.

Steps to Reproduce:
1. Attack any of the mentioned mobs in any way; snowball, sword, fist, potion, etc.