Hi JodhuaL12346,
We appreciate that you posted back and shared the information with us. We also appreciate that you spent your precious time doing those tests.
Per your description, it seems that all notebooks have the same problem, and this issue only occurs on OneNote 2016, and the other application doesn’t have the same problem.
If so, we noticed that you are not using the latest version of Office, so we’d suggest you refer to the suggestion we provided above
to refer to this article: Update history for Microsoft
365 Apps to achieve the latest version of Office. Then you can update your Office to the latest version to check if the same problem will occur.
At the same time, may I know if you have tried repairing Office? If not, you can also refer to the suggestions
we provided to Online repair Office. For your reference: Repair an Office application.
If you have tried the suggestions above and same problem still persists,
We’d suggest you try to uninstall Office, then you can refer to this article: Download and install or reinstall Microsoft 365 or Office 2019 on a PC or Mac to reinstall Office to check if the same problem will occur.
Please do let us know if that works for you, we’ll be glad to provide further help. At the same time, may I know if Word or Excel have the same problem? Could you provide the detailed name of
the product you purchased?
Thank you for your patience so far.
Best Regards,
Sukie