Is Mob Pathfinding Broken?

I don't want to open the issue tracker to check if others are having this problem too:

When I create a living entity and set it to go somewhere, be it follow the player to attack or follow an item in player's hand, the mob seems to get stuck spinning for a while.
Also, when the mob is walking towards a standing player it walks fine, but every step the player takes makes the mob spin and sometimes walk backwards.
So the result is, when a player is fleeing from the mob, it starts spinning and walking in the wrong directions, walking sideways and generally not looking to the player.

I had this problem with a lot of different entities and it became really noticeable when I went to test them in combat conditions. I don't know if it's the order the AI tasks are set, but I tend to place (from top to bottom) melee damage, then attack entity, then walk around, then look around.

Would like to know if you're having this problem too