Some cats won't follow owner [Server]

I tamed a bunch of cats that were crowding at a corner. I noticed that they were bugging on a block. I broke it but they stil won't move from there. I made them sit, pushed them further then made them stand but nothing changed. I leashed them and stood for a while, they didn't move by themselves. It looked like I was pulling some entities with no ai. Strange thing is, only one of the tamed cats actually followed me. I rejoined the server, still no luck