I was playing the Shadow Thief strike on Heroic Playlist, when Taniks failed to run away when his health got low. Now, I haven't played this strike since TTK dropped, so I figure "Maybe they've switched it up a bit"? Except, no... it was just a glitch. As the video shows, we killed him before the Spider Tank room and he dropped some decent engrams and loot. Sadly, the door to the next room didn't open so, after searching the area for any good reason for this, we had to quit. A shame as this meant no legendary marks. Has this happened to anyone else (in this strike or another)?