I've decided to complete daily heroic today(http://www.bungie.net/en/Legend/PGCR/1/4611686018436483985/2305843009222921485/466545652?_) and face such an issue. I defeated the boss, but was killed by some adds in a second. There was no load from checkpoint after that. I just saw my ghost and "waiting for ally to revive you.." and all I can do was "go to orbit". After several minutes I've got such message: http://i.imgur.com/lCr7XVz.jpg This bug is pain in the neck. I have to complete daily heroic one more time for a reward :(