Can't Place Crest for Quest "Seat of the Triumvirate: The Crest of Knowledge"

In order to complete the quest Seat of the Triumvirate: Crest of Knowledge, you must first obtain the crest from the dungeon, then place it in the Vindicaar while the ship is docked on Eredath. You will not be able to place the crest if the Vindicaar is docked anywhere else.