EDIT:
This issue should now be fixed
Original Post:
At some point yesterday the inventory and store systems inside of Killing Floor 2 started showing signs of issues to end users. We are continuing our investigation as well as working to push out a mitigating fix if we can.
Players inventories are fine and should return to normal once this issue has been fully diagnosed and addressed.
We currently expect to have a fix in place in aprox an hour or two.