Chaos Zakum, Von Leon & Magnus issues

First, Chaos Zakum (CZak) is not dropping Perfect Pitch at the end of the run. Second, the Von Leon drop rates are currently really bad. I did some testing on Galica: I killed 10 Von Leons without using any 2x Drop buffs, and without using Taunt or Steal (from a Shadower). Out of those 10 kills, I practically only got 5 Silver Coins and some random gear with terrible stats. Most of the items were completely useless since they dropped without any Weapon Attack. Lastly, the Magnus boss is not dropping anything at all, it's only giving EXP. I don't know if this is intentional or not, but I got absolutely nothing. I also tested this on the Galica test server and encountered another bug: I couldn't leave the boss room after the fight and had to disconnect/force close the game just to get out.