Upper Steel Rake - Incorrect key dropped

Our group got to Upper Steel Rake. However, Chief Mate Menekiki dropped a Power Chamber Key, instead of the correct Weapon Storehouse Key. This totally blocked us from opening the Weapon Storehouse door (in screenshot) and proceeding through the instance.

According to the Aion wiki page for this section ((Group) Steel Rake Slaughter), the key drop order should be as such:

Menekiki drops the <Weapon Storehouse Key>. Proceed into the Weapon Storehouse and kill Zerkin the One-eyed to get the <Large Gun Deck Key>. Enter the Gun Deck to kill Chief Gunner Koakoa who drops the <Gun Repair Deck Key>.

Fixed!