If you logout or "forcelog" with Akamanah or Zariche they will either dissapear or drop. If you enter peacezone with Akamanah or Zariche they will dissapear. A delay was added between the dissapearing of the Cursed Weapon and the next possible drop, so it won't drop in a unstoppable way. After reaching Stage 10 Akamanah and Zariche will be immune to debuffs now.