I had died while with my party doing a bunch of missions when I respawned in a weird dungeon! I kept dying and respawning in this place but was able to make it to a boss called the Gold Hoarder. I fought for a long time but ultimately died and was respawned with my actual ship.
Weirdest glitch I have EVER had. It straight up put me in, what I assume, is a tall tale dungeon!