I've been doing more testing. This is the UC Starter Pack with the Legacy Graphic Rules on Windows 10.
This is a heavily decorated lot. View distance set on Extra Large and Fade Distance Off
I summoned 50 sims and pressed play. I switched between floors and turned lights on and off.
I was NEVER able to do this previously on windows. This lot has been notoriously difficult, I avoided throwing parties because I would get pink flashing so quickly.
The new graphic rules file may be worth it?















