We are using SharePoint Online, and for the Document Library set as "Modern", when I create a new document from the button "New", it opens in Word.
But it looks like the connection with SharePoint is lost : the AutoSave is off and when I want to save the document, I get a pop-up asking me to connect to OneDrive.
But, for the same Document Library, I return to "Classic SharePoint", it creates the document in the browser (not any more in Word), and then if I edit the document in Word, the AutoSave is on !
And the SharePoint properties panel is loading in Word.
So, what's wrong with the modern libraries ? What am I doing or setting wrong ?