Aristois

When i am playing Minecraft with the client all mobs go invisible and the only way for me to know where they are is to turn EntityESP on. Also when i turn on KillAura it will not attack anything no matter how close I am to mobs or people. When i place a chest or bed they go invisible. i can still use them but cannot see them, this is a problem which has occurred 2-3 days after i downloaded the free version.