GREATEST GAME EVER!! But...

So Ive been playing for about four years now, and this newest version completely blew away all my expectations!! Only a couple suggestions:
1. There seems to be a glitch with the rate of paladin hammer drops. Ive been farming for the last two weeks for a Paladins Hammer (with full beetle armor and possessed hatchet) and I STILL DONT HAVE ONE. I checked to wiki and it said it was like a 15% chance to drop and I know Ive killed at least twice the required amount to get one. Either Im super unlucky or theres a bug.
2. BIOME KEY MOLDS. Ive tried everything to get a crimson key mold. I made an arena and changed all the blocks to crimstone. Then I went online and found an artificial biome mob farm. Works fine, but I spent FOUR HOURS sitting here, farming Herplings and Blood Jellys. NOTHING.
3. Steampunker. After defeated nearly ever post-lunar event in the game, I was made aware of a beautiful thing called steampunk wings, sold for 1 platinum and 20 gold coins on a certain phase of the moon (not sure which one). I tried every phase of the moon including blood and solar eclipse. Idk if Im just dumb on this or what but I cannot find them

Etfssc about Terraria, v1.2.11971