Seen quite a few characters earn the Trakanon Idol achievement after completing the Night of Shadows mission "When One Door Closes". It appears as though it might be tied to the Brutal Efficiency achievement specifically.
Yeah, I saw it the other night. Swapped out one of my main toons to an alt to get the mission achievement and saw the Trak Idol achievement scroll by on him.
Yeah, my toon got the normal rewards for the mission achievement, but also got the Trak Idol achievement. The other toons I ran through the mission that already had the key done didn't get that achievement.
For 1 week just 1 week make it so it grants Tarmoni's Blessing as a End of Year Gift, than fix fix it. Solves another bug thats out there and cleans up my /key Ach.