Time: Random
Frequency: NA
World name: Tonberry
Character name: Qoo Kitty
Class/Level: NA
Party or solo: NA
In-game time: NA
Area and coordinates: NA

Sometimes when I switch to another class, the game will complained that the gear cannot be found, even though it is inside the Armoury. There is only 1 copy inside the Armoury.
Refer to below image.