SE requires more memory than it did before with the new updates....16 GB wont be enough. 16 GB with 8 GB virtual wont even be enough, I have 32 GB on standby I'm using that now and I also set my virtual at 128 GB....otherwise I couldn't run SE with two browsers with multiple tabs (like 10). I was getting memory errors, black screens, frozen screens and visual C errors. Oh I also run OBS and that wouldn't update with SE running until I added more real and virtual ram. So to sum it all up, 16 GB RAM and 8 GB virtual RAM is no longer enough (my video card is a 1060 6 GB card). And I run it at ultra preset 720P.
confirmed that this is a memory issue, I stuck with 16GB RAM (will keep the 32 GB RAM on standby until I really need it).....just changed the virtual memory from 8 GB to 96 GB (32 GB on my NVME m.2 SSD and 64 GB on my mechanical hard drive) and have no issues whatsoever now, I can do 4K cubemaps with little to no delay, no black screens or freeze ups and no memory errors.... everything is now running much faster too. I also have Chrome running with 15 tabs open and Firefox with 5 tabs open as well as OBS along with SE Pro. It's all working well (knocks on wood).