The armadillo seems to be missing some ticking action or something.

Spawn an armadillo `/spawn armadillo` and watch its movement.
It's like it's like its ticking correctly, but almost as if its movement is being sent to the player every second, its janky looking.

I've tried it on single player and it seems to be working just fine.
I've also tried on a vanilla server, and it seems to be working just fine.