A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
I get the same message trying to open an existing notebook on OneDrive with OneNote 2010.
I can open this notebook in OneNote 2016.
Changes in another already open notebook in OneNote 2010 get synced.
Looks like a bug on the OneDrive side creating an incompatibility for OneNote 2010. Just another frivolous change of the authentification procedure ?
Bernd