[Bug Report] Dying to the boss at the same time Kulemak's Invitation

Entered "The Black Cathedral" as Bloodmage spamming spark.
Got all fingers and fought the juiced vessel.
Died and killed the boss with stray spark projectiles.
Loot did drop.
Respawned to claim loot.
No loot and no re-do of the fight.

I understand this is a bug report, but it would be nice to have a portal back to the well of that "return to surface" option after the fight. I hope this suggestion find you well, John GGG.