It seems to me like the pathfinding on a UB is worse since the latest patch.
1) He seems to run into everything around corners in cataract and leviathan
2) If you click on a spot far away, he won't move.
3) I'm in melee with another demigod. If he starts retreating the UB with swipe at a creep, do a 360, and start chasing
4) If I'm chasing a demigod through creeps, my UB will also stop to take a swipe at a creep before he continues to chase