I'd say it's a bug. (Destiny)

by Kahzgul, Wednesday, October 14, 2015, 18:47 (3594 days ago) @ naturl selexion

Possibly related to the issue where chests stopped dropping loot if you'd been in an area farming for a long time. Go to orbit and return and it should work again. Of course you lose a minute of your buff doing that... Still, I've been raking in the glimmer since TTK came out, so it's not too bad.

My new glimmer farm: Draksis. Pop an ether seed, clear the room (including the 2 yellow vandals), rocket draksis and yourself to death at the same time just like in the only exotic farming technique and repeat. you can get up to 4 house banners per clear (takes about a minute), and once every 5 minutes you should pop a 3 of coins for a chance at an exotic.