Bug with the Rental Pack

Hello, when I play with the Rental Pack, the lease duration (7 days) never decreases. Every time I close the game and reopen it, the duration of my leases (as a landlord with rentals) never decreases... if I play and 2 days pass, on a 7-day lease I will still have 5 days left. However, if I save the game and close it at that point, then reopen it, the duration of my tenants' leases will reset to 7 days for all my rentals. So the corresponding gameplay will not work. Thank you for your help.