Bukkit

What steps will reproduce the problem?
1. Spawn a giant
2. keeping close of them
3. or hit them

What is the expected output? What do you see instead?

Not follow targets
What version of the product are you using?

6.3
Do you have an error log of what happened?
no

Could you add your Giant.yml, Slime.yml, and MagmaCube.yml to pastebin?

Everything its ok with yml, only true on kick attack & stomp attack

Please provide any additional information below.