Opening Files from OneDrive causes sporadic Admin prompts

[adixon827]

Have several classes that randomly when they go to open previous diagrams that have been saved to OneDrive they are prompts for Admin Approval from O365.
They can save to OneDrive and I (using a test student account) can retrieve diagrams from OneDrive.
Sometimes if the student changes internet browser they can get around it but not always.
I have checked the permissions like 3/4 times now and no-one else at the time will get the error, just a handful of students at a time.
Any advice for a solution would be greatly appreciated.