It is broken. My buddy has been running lost sectors like crazy. something like 20 runs per day just to farm exotics and pick up new ones. He is lucky to get 1 drop in 20 runs. The on the other hand I almost always get an exotic, jumped in the other day to get two warlock gloves I didn't have yet and got 2 new gloves in 3 runs, no joke 2 new exotic gloves in 3 runs. You either have good "luck" or the absolute worst "luck" ever. I put luck in inverted commas because I strongly believe there is no luck in this game, there are weighted averages for every player. You either have a lucky account or you don't. Oh and this buddy in particular took 180 runs in D1 to get pre-nerf hopscotch pilgrim to drop and is currently at 135 VoG full clears with no vex. Unlucky account.