i was testing out wandering zombies code and found if there is a block/object at start pos of wandering hordes (gamestages.xml - wandering zombies) it returns nulls and runs again later.
2021-08-18T16:02:15 1645.209 INF AIDirector: Spawning wandering horde
2021-08-18T16:02:15 1645.209 INF...