Endgame Deadly boss soft lock

In this specific instance I had killed the boss on the map but died at the same time with no revives so I could not interact with the Vessel of Estazunti. Normally this wouldn't be a problem since most deadly bosses have multiple maps linked to them you can access, however, in this case the boss has a singular access and one point after the encounter. So to sum it up since I failed to interact on the first map I now cannot interact with the boss and I am soft locked from accessing it.

Screenshot: https://imgur.com/a/Jgrb0F4