endless loading screen at 888 spire apartment

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? 1.102.190.1030
What expansions, game packs, and stuff packs do you have installed? I have everything except For rent, growing together, wedding stories, home chef hustle, and like 5 kits.
Steps: How can we find the bug ourselves? attempt to edit the top floor of the 888 spire apartments, then go to save the game
What happens when the bug occurs? the game will be unable to complete the save, instead it will show the saving screen endlessly. it doesn't do this for any other house, or the other two floors on this lot. i've tried doing it with a family moved in and without, but it still won't save.
What do you expect to see? be able to edit and save the top floor of lot 888 spire apartments
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes, i've tried removing them and attempting to save, but the result is the same.
Did this issue appear after a specific patch or change you made to your system? I'm not sure, the last time i played this lot was on another save years ago, so i have no idea when this glitch could have started

Edit By Crinrict: Removed all-caps from title