Come on, really? "Purify the XX beacon" ... except it doesn't. And then I get "Item Not Ready" when I try it again, because ... ESO.
Relogging doesn't change anything. Restarting the quest multiple times doesn't change anything. The only one that works is the one that the NPC does for you. Yes, bug reported. And yes, "support ticket" submitted. Not holding my breath on that, though.
You guys have a great game, but every now and then there's a roadblock, and this ... that's one of them.