The last week I started to get a very weird buy. I always use Command+S to save my work, but many times instead of saving, Dorico is pasting material in the bar that is selected at that moment. When I try to choose save from the File menu, that command is no longer there as shown in the screenshot.
My guess is that somehow the eLicenser is responsible for this. If you try to quit Dorico when the Save menu item has gone missing, does it still prompt you to save and then correctly save if you click the ‘Save’ button in the alert that appears?