Animal Ban?

Basically for some reason when I ride llamas or horses, for some reason I get kicked out of my friend's realm. Well not really ban, but when I enter the realm, the 'Done' icon just freezes up and the controls show up. When that doesn't happen, It shows where I last was and the animal that glitched me out of the game, and freezes there. It started a about 2 weeks ago, and now I cannot enter 2 realms because of 2 llamas, it has somehow fixed itself 2x, but obviously that was just luck, so please fix this issue soon.