OK… I had a slow down on the system, so I carefully saved and closed all programs.
Scrivener SAID it had saved all the work in the two projects, and it closed (as far as I know) normally.
But I just opened Scrivener after restarting the machine, and two-thirds of what I had in the project is GONE.
I can re-create it. I still have the Word files. But… ye ghods! If Scrivener does this to something which is wholly original and created in Scrivener… I would lose my mind!
And then there’s the fact that this represents many hours of set-up and organization!