Teleporting a mob that is currently path finding will cause it to path find towards its original end goal, except that it walks into objects and gets stuck. Mob will go back to normal path finding if a target is found or after ten seconds. Mobs did not behave like this before, instead they would pathfind new destinations.

I am using command blocks to let zombies spawn themselves in an arena by stepping on command blocks with the teleporting command. As I said this was not happening before and zombies would choose a new path based on new location.