What I expected to happen was...
Mobs will chase you and always face/move directly towards the player (like in the PC version)

What actually happened was...
Sometimes I will move out of a mob's way while it is pathing towards me and it will continue moving towards my old location for a fraction of a second before updating even if we are at the same Y level
More Details: Could this be produced by internal server lag?

Steps to Reproduce:
1 Get a mob to follow you
2 Move sideways while close to the mob without letting it hit you
3 Sometimes the mob's pathing will have a bit of a delay.