Same issue here. I’m stuck in the Kichuk stronghold. Can’t walk out, can’t teleport out, and Kirma is just gone. Despawned before I killed it. I saw a mention that someone was able to complete it in normal mode, so I may try that. I am in Hard mode.
I was just able to complete it after leaving the game and trying again. I didn’t change to normal mode, or change anything at all except restarting the game, in case this helps anyone else.