The Rust King - cant click

Hi,

I was fighting The Rust King in the quest and
died at almost the exact moment he was defeated.
I saw the quest reward drop on the ground before respawning.
However, after respawning, the game now instructs me to investigate the obelisk again.
Unfortunately, I can no longer interact with the obelisk.

Same here, boss shows as undefeated on map also.

For anyone else having this issue, restarting your game entirely seems to fix it.

i am affected too by thig bug and now i cant progress through the game, i tried to restard the game twice and the obelisk is not activataable, same senario happened to me i died and then the boss died now i am locked plz help!!!

to anyone interested i found a solution, teleport back to your base and go to this map again and manually look for a green icon item on the map, pick it up and you can continue the campaign

also stuck with this. exact same thing happened to me and i have tried literally everything. nothing will reset it so now im just stuck not able to advance the storyline... anyone with some logical help?