Bugged Quest NPC: HAHASAKO

[Rupart]

October 9, 2013, Location: HighBridge (21,21) Eastern Thanalan Server: Coeurl
Quest: Sealed with Science (Main Storyline level 41 quest)

Action used: right-click and "use" key item on NPC
Right-click involved short pause, then nothing. "Use" involved "Invalid target"
Key item: Warded Pot
Time: 6:00 PM (CST)
Frequency: ALWAYS
World name: Coeurl
Character name: Rupart Iiezl
NPC name: Hahasako
Monster name: n/a
Class/Level: Summoner level 42
Party or solo: BOTH
In-game time: Unknown
Walked up to NPC and there were 5 people standing there. Quest turn-in did not finish. Tech department suggested posting on forum.

Connection: Cable

Thanks, in advance.