Dial Abj key does not give correct item

[Kssin]

Platform: Windows
ISP: Comcast
Type of Internet Connection: Cable
Internet Connection Speed: 25 MBs
Date & Time: 9/12/16
Character Name: Kssin
Race: Hume
World: Carbuncle
Main Job: THF
Support Job: PLD
Area and Coordinates: Lower Jeuno
Party or Solo: Solo
NPC Name: Mystrix
Steps:
1. Traded Dial Abj key to Mystrix in Lower Jeuno
2.Received a loaf of Hobgoblin bread

Does the key also randomly generate items like that?

[Stuzey]

if you have the abjuration in your inventory already, it will give goblin food