General Info

• I am running a modpack
• I can reproduce this issue consistently in single-player
• I can reproduce this issue consistently in multi-player
• I have searched for this issue previously and it was either (1) not previously reported, or (2) previously fixed and I am having the same problem.
• I am crashing and can provide my crash report(s)
• I am using the latest version of the mod

Forge version

47.3.10

Mod version

4.0.0-alpha.11

Java version

Java 8 Update 261

Issue Description

According to the wiki and patchouli book, wither cows should be immune to fire and knockback, but they do take damage from fire and get knockback.
Also, the slowness aura that is supposed to slow creatures around the wither cow also affects the wither cow itself, so the wither cow is always under the slowness effect.

Additional Information

No response