I got a notice that the shops might be not restoring your property when they expire, get backed up and then get restored. Please all do me the following favor:
When the store gets closer to expiry, please fill it with something w/o value and re-rent the shop. Tell me if you get your stuff back.
If you want to help more, rent a shop for one day put in some cobble and tell me if it gets stored in there, backed up, and restored when you rent it out again.