Hi Larian,
Death in the Underdark results in some odd behaviour.
1.
[On Shore] - Whilst fighting the Duergar in the Underdark near the shore, my main PC was smacked back into camp by a thunderclap spell (or similar)

and was dead on the floor in my own blood (party remained in combat back in the Underdark)
2.
[On Raft] - Second Time it happened on the Ship La'Zael was teleported with me when I died and was able to resurrect the whole party by paying the strange undead guest at camp. We teleported back to the raft to find the remaining Duergar gone and with no means to end the combat.
3.
[Glut Death] - Separate to the above two incidents, after slaying Glut, his portrait was not removed from my party.
_________________________________
intel i7-3820 (overclocked to 4.3GHz)
32GB RAM
NVIDIA GeForce 1070 (456.71 Driver)
Win 10 64bit OS
Resolution: 2560x1440p
Running Vulkan