I just finished doing Gadgetzan Water Survey in Tanaris, I had to bubble and fill the Tapped Drowsing Widget to be able to complete it since tehre were like 10 Centipaar Tunnelers on the spot. This add is supposed to attack you after you finish the quest but they should despawn when combat ends, now they just stick around and accumulate.
I just finished doing Gadgetzan Water Survey in Tanaris, I had to bubble and fill the Tapped Drowsing Widget to be able to complete it since tehre were like 10 Centipaar Tunnelers on the spot. This add is supposed to attack you after you finish the quest but they should despawn when combat ends, now they just stick around and accumulate.