Adding the patrol functionality was bound to have have side-effects since it's a fairly substantial amount of code.

The NPC problem existed before Season 7. It was pretty uncommon but it did crop up now and again; especially on the more complicated maps. The frequency is just much higher now.

The ability to set patrol routes is a real boon though so I am content enough on that score to give it a chance. Foundry still needs a lot of attention but this is a good step forward.