Catalyst drop from nightfall/crucible activities totally stopped after completing some of my unfinished catalysts. I know that this may be due to RNG but this is getting very tiresome at this point as I have invested a significant amount of time playing this game along with a significant amount of money to buy all expansions plus many cosmetics. I am definitely not going to pre-order "The Final Shape" until I get all the catalysts for all the exotics that I own. From my account history, Bungie should be able to tell that I tend to spend a lot.