When starting the voyage 'A Raid on a Dark Fortess', which is available within the Special Voyages > Limited Voyages section of the Voyage table on your ship, please ensure that you select the option 'Dive to location' instead of 'Sail to location' so that the voyage completes correctly.
Voyage - 'A Raid on a Dark Fortress' - Ensuring to 'Dive to Location' when starting the voyage
