Hi,
Did you use VPN to access in your Mac?
I suggest you try to clear the OneNote cache on Mac, please follow these steps:
- Quit the OneNote completely.
- From Finder Go- Go to Folder... (Shift+Cmd+G)
- Enter "~/Library/Containers" and press Go (Return key).
- Find the "com.microsoft.onenote.mac" folder.
- Select and delete that folder using File/Move to Trash (Cmd+Delete)
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