A few times recently we've noticed that the emergent skeleton ships go under again while we're fighting them and they have not yet been defeated. It coincides with the current world event ending.
Somewhere I've read that has to do with that there won't be emergent skeleton ships during a Fleet world event.
As after a world event the Kraken will appear and has to be dealt with, I think that the emergent skeletal ships can be active for a while longer (after the Kraken is defeated or is timed out and despawns). Perhaps have no new emergent skeletal ships spawn during the period between the end of the world event and the end of the Kraken event, but let us have a chance of finishing the fight with the skeletal ships.
