I just started it, at the zombies (lvl 2 stronghold) and well, it kills them but every time it have killed zombie, it clicks exactly same spot on minimap, then it clicks one step forward and then again one step to back. After like 5 secs it attack to next npc. But again after that, it does that again..? Plus if i click the 'loot arrows' it only loots shooted arrows, it wont pick up steel arrows what those zombies drops..? and there are no steel arrows on that loot list..? thanks.