Help with Fang of Mokele (Soulbeast) specialization collection

I'm trying to complete the Soulbeast collection and have everything except the recipe that's supposed to drop from the event in The Desolation of saving the wandering spirits from the ghost eaters. I've succeeded in the event several times but all I get is a tiny amount of karma and a few coppers. What am I doing wrong? Thank you very much.

Edit: Never mind. I tried it once more this evening after the daily reset and this time it worked. Mod feel free to delete this thread, thanks.