Trading: Item deleted on full inventory

As per the title, on a Titan with full inventory (both regular + titan expanded pack) the trade was SUCCESSFUL, but the traded item was DELETED.

It was in neither player's inventory. Upon relog the trader's game crashed, the tradee had no issues. Trade happened in a hideout.

P.S. Clarification on full inventory.
The inventory wasn't completely full, but it did not have the appropriate arrangement of "slots" to accomodate the item (body armor)