I’m in Tanaris and the Anniversary Event when I started to do the Great Detective quest chain. I got to the part here you are using the torch on the sand, and my shaman starts spamming “I don’t have a target”. Log out turned off add ons, still the same. I’ve even dropped the quest.
I changed to a different toon and did it with no problems. Logged back on the Shaman and he’s still spamming the same thing.