Cause of the bug: Locked (Moordaine in my case) stronghold dungeon is active during an escalating nightmare dungeon key.
Result: Player is teleported to the stronghold at the end of the dungeon, escalating NMD key is lost, progress is gone.
It’s extremely annoying, it happened to me after the 2nd escalation step.
I just experienced the same thing, Moordaine after finishing the second dungeon.
Was immediately teleported with no loot or choice from the third nm dungeon portion of the escalation sigil to the stronghold next to Anica’s Claim in fractured peaks and then was unable to reenter the escalation sigil dungeon’s to defeat Astaroth. That was my first and only escalation sigil and am super dissapointed to lose the time it took, sigil, loot, and seasonal objective. Was on xbox fwiw and Torment VIII.
Same on PC. Not sure if it has something to do with my war plans choices or not. I think both times it happened to me I had a high stack of conviction.
I am on the PC and it happened twice already. I was about to kill the 2nd floor boss in Escalation and was teleported out and outside the Ruins of Qara-Yisu. Maybe the game want me to complete the stronghold.
Had this happen twice now, as other said, you just get teleported to some stronghold at the end of the 1st, 2nd or 3rd dungeon. Both occasions wasted an escalation sigil.
I just experienced this bug
This just happened to me. Very confusing bug. I thought this was part of the escalation sigil and that I would be teleported back, but no. I then rode to the nearest waypoint and teleported back to the city I opened the escalation sigil before (I had opened a portal in the escalation dungeon), hoping that my portal would still be there… but no luck.