I was on a War Brig while i was AFK when everything excpet the ship disapired. I was flying around taking pictures of the ship with the f9 button. What it is: it is a glitch that happens every so often while your on a ship. You can fly around and go in the ship by flying though it. It is unknown to me how you get in this glitch but to get out teleport to a crew mate or an island.