[OPEN] Disappearing Ceiling (Glass Roof)

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What is your current game version number? 1.51.77.1020
What expansions, game packs, and stuff packs do you have installed? All of them
Steps: How can we find the bug ourselves? Build on a 64x64 lot and place a building at the back of the lot
What happens when the bug occurs? The second floor glitches out and cannot place anything on it - no floor tiles, no items, and when zooming in and out it disappears and reappears.
What do you expect to see? The second floor operating normally.
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? Neutral/Not Sure 

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This person on the old forum place had the same issue but I don't know if it was ever resolved - https://forums.thesims.com/en_US/discussion/942831/brindleton-bay-disappearing-floor

Also if the building at the back of the lot is removed the floor appears fine.  I have cleared my cache, removed any CC I have, started a new save, and tried multiple 64x64 lots - both Del Sol Valley and Brindleton Bay.