I gave up yesterday after I lost count of chests opened, 400 blooms, 156 helium filaments, 80+ blues, 2 legendaries, 70+ synths and not one key. Tonight, I just log in to pickup the day6 bounties to complete, I run the bounty once, then a defend the warsat comes on, so I stay to do that for energy/shards. Then the wolves turn up again, so I do it again. Both times engrams and much needed synths ;) Load back into the tower because I got nothing, and there's a key at the postmaster. I nearly sh*t myself. RNG - you utter ****bag