Fix OneNote Class Notebook Pages Missing from Review Student Work

Navigate directly to the individual student's section in your Class Notebook and open the assignment page that is missing from the review pane.

Type a single character, such as a space or a period, anywhere on the student's page.

Press Ctrl + Z (or click the Undo button) to remove the character you just typed, restoring the student's work to its original state.

Reopen the Review Student Work pane. The student's name and page should now reappear in the list.

Check the distributed pages for excessively large file attachments or uncompressed images and remove or compress them.

If you have a very large class, consider creating multiple, smaller Class Notebooks (e.g., dividing by groups or subjects) to reduce the server load.

Right-click on the notebook name in the navigation pane and select 'Sync This Notebook' to ensure all data is fully uploaded to the server before reviewing work.

Record the affected Class Notebook names, specific missing pages, timestamps of when the issue occurred, and the affected user accounts.

Reach out to your institution's Global Administrator, as standard users cannot usually access advanced Microsoft 365 support directly.

Ask the Global Administrator to open a formal Microsoft Support case from the Microsoft 365 Admin Center, including all the synchronization details and server logs if available.