Yes, I know this is a decently old topic, but this bug is still happening to me and I'm just trying to give you every little bit of data about it that I can muster.
Lately, I haven't been running Skyscrapersim that much. I used to run about 5 buildings every day, and sometimes even more than that, and I'd spend a good while in each building. That time was documented in my last post, when the bug was at its worst in terms of this year, but now that I tend to just run 1 building every day, and sometimes not even that, I haven't seen a texture blackout in a long time.
This might be the connection here, because when I don't use Skyscrapersim for ages, it takes longer to load, but the bug isn't there. If I use it really heavily, it doesn't take long to load at all, but the bug is there. So it seems like the solution is just tied into my daily Skyscrapersim usage XD
However, this long loading phenomenon might also be a macOS bug. When I first got Skyscrapersim, it opened in a flash, and I couldn't see any of the OpenGL "let's download this plugin blah blah blah blah" stuff getting spat out into the console, just the "all done" message and everything under it. As I added more buildings and data, the loading time slowed down. Even when I was nearing 900-1000 buildings, the loading time was still good, but now that I have 2000 buildings and 3000 pieces of data, the loading time is very noticeable.
So I can finally say that the first issue (texture blackouts) has been unofficially solved, but who knows, maybe it'll come back again XD. The second issue might be a problem, and it is concerning me that it is a problem with my computer (see specs on original post). I am slowly filling up my internal SSD and I only have 8 gigs of RAM, so I think, no mind if it relates to the problem or not, I am going to run a massive computer clear-out and maybe even delete off some Skyscrapersim stuff that has never been used.
As always, any help is appreciated.
-SL2844