Missing "monster of the sea" mission
PC user. Unable to start the frontiersmen mission "monster of the sea". I have finished any other frontiersmen missions, completed the main game, and any requirements to start this mission, but there's no symbol showing up on the map. I tried to find the travellers in the taverns of Boston but there's no way to start conversation there. My animus database isn't showing up "monster of the sea" and the frontiersmen mission is not completed so I'm sure I haven't played this mission.