We have confirmed and are investigating the issue below.
We ask for your patience as we resolve these issues promptly.

[Currently Known Issues]
An issue wherein trading an equipment to an NPC through the text command "/item", if the item is in the Mog Wardrobe but the item is not within the inventory, another item may be traded to the NPC.

*Since it is possible that another item may be traded in, please do not trade equipment to NPCs using the text command before this issue is fixed.

We apologize for any inconvenience this may cause.

*The above issue has been addressed with the Jan. 6, 2016 2:00 (PST) / 2:00 (GMT) version update.