Lot With Elevator Wont Save

Product: The Sims 4

Platform: PC

Which language are you playing the game in? English

How often does the bug occur? Every time (100%)

What is your current game version number? 1.90.375.1020

What expansions, game packs, and stuff packs do you have installed? Get To Work, Get Together, City Living, Seasons, Get Famous, Island Living, Cottage Living, Dine Out, Vampires, Strangerville, Realm of Magic, Luxury Party, Spooky Stuff, Vintage Glamour, Laundry Day, Paranormal, Courtyard Oasis, Industrial Loft, Fashion Street, Inceon Arrivals, Blooming Rooms, Decor To The Max

Steps: How can we find the bug ourselves? Unsure. Put Elevator in house and try to save?

What happens when the bug occurs? You can't save. Or 'save and exit'. Just exit, and it saves no data.

What do you expect to see? My building gets saved.

Have you installed any customization with the game, e.g. Custom Content or Mods? No, never.

Did this issue appear after a specific patch or change you made to your system? No.

Please describe the patch or change you made. I put the elevator on the ground floor of a 5 story house (4 above ground, 1 underground). However, as soon as the elevator is present, the lot will not save. I have saved other lots since then without issue, and I can save this lot as long as the elevator is not on the property.