A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hi Connor,
Thank you for posting your query on Microsoft Office Community.
We understand how you feel about this issue, let me assist you further.
A quick question before we proceed.
Is the issue specific to a Notebook?
If yes, you may create a new Notebook and copy all the content to the new Notebook and verify the results.
You may delete Office cache files as mentioned in below.
1. Go to start menu and open Upload Center for Office.
2. Go to Settings.
3. Click on 'Delete Cached Files for Office.'
4. Click OK and check for the status.
Note: You may take a backup of OneNote Notebooks as deleting caches files for Office in OneDrive may cause the data loss.
Hope it helps. Try the suggestions and let us know the result at your earliest convenience.
Thank you.