You've decided to put patch notes on the forums without telling us that Radiant Fire Crystals aren't dropping much (Except D28). I don't know if it was a bug in the first place or you (OOO) didn't want to write it in the patch notes saying that the Radiant Fire Crystal drop rate would change.

I doubt that it's 90% difficult just to change the drop rate of Radiant Fire Crystals. Also, the price of Radiant Fire Crystals in the Supply Depot is extremely high. Nobody's going to pay 700 energy just to get 50 Radiant Fire Crystals.

Solution: http://forums.spiralknights.com/en/node/91590

Edit: Please post in an existing thread about this topic, rather than starting a new one. Thanks!