Achievement is active, but quest A Poultry Novel doesn't count towards its progress due to the bug. Will be fixed with the next server restart. Another quest Flying the Coop should count towards the achievement progress even now.well.. names: Maevar, Nemorae, Stracciatella.. Date, since event started so yesterday and day before?
Edit: I had no trouble with it during the previous time event was up on my main, that achievement completed fine last time.