We have confirmed a bug with items that use charges (for example XP Boosts have 1/1 charges if you right click and select info).
Items that use charges are not being removed from your inventory when they run out of charges, thus leaving you with a useless item with 0/X charges remaining.
We are working on a fix for this issue and will have it pushed to Holodeck as soon as we can confirm it is fixed. This should fix up anyone who has one of these items stuck in their inventory.
For now - beware of purchasing items on the EXCHANGE that use charges, as you may not know how many charges the item has remaining and could get stuck with an item that you cannot remove from your bag.
I'll update on this issue as soon as it is resolved.