@MintMario Impressive troubleshooting!! 🙌
I am also seeing the occasional and somewhat elusive square shadows thing. I also tried the workaround with the SSAO file, and the issue persists.
I would suddenly notice the square shadow under a Sim or pet on the lot, then most of the time by the time I paused it was gone or a weaker square shadow (less impressive to screenshot), or it showed up when I paused or hovered, then went away after, things like that. Very weird. I saw this on two different lots while playing yesterday.
I'm on an iMac, Catalina 10.15.5; Retina 5K, 27-inch; 3.2 GHz Quad-Core Intel Core i5; 32 GB 1867 MHz DDR3; AMD Radeon R9 M390 2 GB). I own all packs. No Mods or CC ever. These are my graphics settings and a few screenshots of the issue:
