Locked in boss room Expedition precursor ,Olroth

When we killed the boss in EXPEDITION PRECURSOR. You know, normally the boss will rebirth. And we kill it twice then finish the boss fight.


And then we can move outside to the boss room and teleport to anywhere.Right? But when i killed the boss 'Olroth' once. It did not REBIRTH.It dropped the item.

The interesting point is i have been locked in the boss room. And i cant go anywhere even i tap the teleport. Because im in the boss fight room. i cant move outside to teleport.


So, i am locked in the boss room forever. Can someone help me?