Seems like the catalogue book is desynced from the box you put all the inventory in!
It used to only update the catalogue after a reset. Put in a few items you can afford to lose, wait for the reset and see if your storage is working correctly over resets and if the item has been added to the catalogue if so.
I thought I read somewhere there's issues with persistent storage atm as well so, you know, don't drop in your Uber dark iron sword of dragon-god slaying.