Here it is January 2022 and this bug continues. I have attempted this achievement over and over while taking the time to kill every single chak in the room. I even killed the last chak and Braham resurrected me when I died during the battle and yet, no achievement. Braham actually moved to resurrect me but upon my rise, he became frozen. He wouldn't allow me to speak with him, he wouldn't follow me to "meet my friends." Why is this? After all these years of people complaining about this bug, you still require this to be completed for the Heart of Thorns Act 3 Mastery. If you are not going to fix it, which is obvious, then do not require it in the Mastery completion. This seems a very simple solution. Simply require one less achievement so that people can accomplish the mastery without the agonizing necessity of repetitive attempts and constant complaints. Please be responsive to your customer's wish to complete the Mastery.