I am running the latest update of Scrivener 1.9.15 from a week or so ago. It was working fine until this morning when I tried to use it. The following error was generated and Scrivener was unresponsive, Clicking anywhere inside the Window made it go grey. I could not kill it with the “X” box in the corner. Eventually, Windows 10 would throw a message and I was able to close Scrivener hard. I tried this a couple more times, with the same problem. My Internet is working fine, as I was on the Windows Beta Site.
FYI, I am running 1.9 and Beta 3 side-by-side, since the beginning of the Beta with no problems. Worked fine yesterday. Windows 10 1903 with latest updates.
[Update: I restarted Windows 10 then started Scrivener again. This time it worked as always.]