Hi all, Thank you for sharing the details! 
To help us investigate further, could I kindly ask for a bit more information?
@bernie,
It would be very helpful if you could share the new save files.
We’ve received the file you shared before, but we need the file in .usvx format .
Here’s the instruction again! : How to Send User Files to The inZOI Team (Updated)
@SmallArchangel,
Have you ever activated any mods? If so, could you please share the list?
It would also be a great help if you could share the save files in .usvx format!