Not sure if this has been posted already, but I'm seeing a few NPCs with double quest feathers above their heads. Notably, all of the NPCs for the Arasai racial quest have the bug, but I also saw it on a Guide "actor toon" today:
The extra feather is from your parrot On a side note I did find the npc on TS docks for hadden's earring was actually under the dock floating on the bottom til I hailed him~