Just wanna make sure you guys are aware that this type of bug exists. It ruined a single instance for my party because we couldn’t finish the mission due to this bug.
My party and I began hitting and killing the first boss of the Siaulai Mercenary Mission. Then, the boss began to flee away from the party (like some monsters do when approaching critical health) and it headed towards the direction of the 2nd area of the mission. That area was blocked off by barricades because the first boss had not been defeated. The boss “noclipped” past the barricades and continued fleeing up the stairs. We could not defeat the boss or lure it back inside because we were blocked by the barricades. We could not continue the mission because the boss had gone through impassable terrain in which none of our party members could overcome. Eventually our party gave up and exited the dungeon. Doing this consumed one (1) mission entrance for every member of the party.
A possible solution to this could be to lure the boss away from the entrance to the 2nd area before the party start damaging it.
Anyway, this is just an awareness post. Hope it comes in handy to some people one day.