I had Cipher: Shantotto II in my inventory and went to change my job to BLM and then warped to Windurst to go and trade it in for the trust, but when the trade window opened, the cipher was just gone from my inventory and I had nothing to trade him. I searched all my storage and it just poofed out of existence. I know I didn't drop it or anything. I did talk to Wetata before attempting a trade but I checked my trusts and she's not there, either, so something's for sure gone wrong.