Back Up All Notebooks Now Cannot Backup OneDrive Notebooks in OneNote

Question:
Why click the "Back Up All Notebooks Now" button in "Save & Backup" in OneNote Options window, it does nothing? OneNote still doesn’t back up the Notebooks stored in OneDrive, event have opened them in OneNote 2016.

Answer:
Click "Back Up All Notebooks Now" button in OneNote Options window, it should be back up the notebooks saved in local or OneDrive.

It should backup all notebook opened in OneNote 2010, when click "Back Up All Notebooks Now" button.

Microsoft has added a checkbox above this button from OneNote 2013: Back up notebooks stored on SharePoint.

In default,  it has checked "Back up notebooks stored on SharePoint" in OneNote 2013 and OneNote 2016 volume.

But, OneNote 2016 click-to-run version unchecked "Back up notebooks stored on SharePoint" in default. So, it will not backup the notebooks stored in OneDrive when you click "Back Up All Notebooks Now" button.

OneNote click-to-run include: All the OneNote installed from Microsoft website, OneNote free edition, OneNote 365.