Where ever I go my a lot of my pets teleport to me but thier sitting actually

I was in a faraway place not that far I'm near to my house because I live in a cliff so wherever I go my pets teleport almost all of them actually while their sitting actually.
What I thought was going to happen was my pets to stay in my house.
They actually teleported while sitting.
I hope you fix the bug it'd driving me crazy. 🙂
P.S I don't know what type of Java I'm using but I tried my best.