Sometimes a mob isn't recognized by the client and is unattackable and invisible but can still attack all tho in my case it has always been a zombie is suspect other mobs may also be affected. I am sorry that I couldn't provide any evidence.
Sometimes a mob isn't recognized by the client and is unattackable and invisible but can still attack all tho in my case it has always been a zombie is suspect other mobs may also be affected. I am sorry that I couldn't provide any evidence.
Are you using Optifine?