Can't Access FFV Event, NPCs Missing

[Sunless_Sea]

So, the last time Nocturn for Heroes happened, I started it, but couldn't finish the last part of the quest line. "The Man in Black" is in my Journal under Completed quests, listing the parts I was able to do, but it is not in current quests.

Now that the event is back, I can't access the event NPCs. Neither the starting NPC in Ul'Dah, nor the next one I need (Noctus in New Gridania, quest is "Messenger of the Winds") will appear for me. I know I am in the right place because both sites are surrounded by other players participating in the event. I know it's not loading issues because I have waited at those sites for several minutes. I have a hot key for selecting NPCs in a crowd. They are simply not there.

I will gladly repeat the parts I already did if I can finish this time, but I am at a loss as to how to fix this. Any help would be greatly appreciated.

(If you're wondering why I couldn't finish last time, yes, I was a sprout, no, I didn't know what a stack marker or iLevel were; it was the end of the last day, and by the time I figured it out, the event had timed out.)