A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hello,
This could be a cache issue.
Hold down Win + Alt + Del keys and launch task manager, then end the OneNote app.
Then hold down Win + R keys, enter thye following and press enter.
%localappdata%\Microsoft\OneNote
This should open the folder 16.0, then delete the cache folder, or rename it to something like cache_old if you want to keep a backup.
Then restart the computer and see if it helps.