qt08 Yeah, that supports my theory.
Well, it was tricky but I managed to get into San Myshuno. No more white screen.
My penthouse was a residential rental😬. The fix was to go to the lot WITHOUT using the world selection screen and change it back to residential. (Even if your penthouse is a different lot type, this might fix it.) If anyone wants to try, this is what I did:
First, if a playable sim owns the rental, sell it through their "Owned Businesses" panel. If the owner happens to live in one of the worlds that won't load, go to a working world and send the sim there using the "Visit" icon that appears after selecting a lot. Then sell.
Go to Manage Households and move the sim/family that lives in the penthouse to a different world.
Play the family and start a social event that will allow you to choose any lot in the Fashion District (or in whatever district your penthouse is located, for example, Nuevo Corazon for Ciudad Enamorada.) Once you arrive, end the social event. Scroll over to the rental and click directly on its walls to "Visit Lot."
After arrival, enter Build mode. Delete all extra rental units, if any, then change lot type to residential. Done.
How did you actually enter building after ending the hang out? I cannot even do that; it still hangs up on the white screen.
What exactly did you do after ending the hangout? Do not leave the lot or exit the world, etc. Simply scroll over to the penthouse from live mode, zoom in and click on its walls.
