Observe my quest log:
I have highlighted the quest "Bwemba's Spirit", in which I am tasked with finding "the other Darkspear Emissary". I'm pretty sure this refers to Vol'jin, the red-haired fellow standing immediately to the right of my quest log window. I was under the impression that I'd completed this quest already, but apparently Bwemba isn't ready to acknowledge that we've located Vol'jin.
Is there some other quest I still have yet to do? I spent a good 20 minutes today flying around Stranglethorn Vale to try to find a missing exclamation point, but I couldn't see one. What's going on here?