A bug in the end level loot was causing some player's inventory to bug and make their items unusable.
The bug has been fixed and loot should be now properly assigned and interpreted by the clients. No client save was corrupted so you should expect to find your inventory as it was. An extra Parcel was added to those accounts affected.
Sorry for the inconvenience. Remember to use the bug report function if you have any problem in-game, it helps me react fast to any game-breaking bug. The bug report will let you leave an e-mail address for follow-up soon.
A content update is coming soon and I am working on it right now.
Cheers
Adrien