Microsoft 365 Family: Copilot cannot directly access OneDrive files

Thanks for confirming you’re seeing the same issue. That’s useful to know, as it suggests this may not be limited to my account or PC. In my case, Microsoft Support tested the issue with me remotely using Quick Assist. We confirmed that OneDrive itself is working normally, Copilot and OneDrive are signed into the same Microsoft account, and the issue occurs both in the Windows Copilot app and in Copilot on the web. Manual attachment works: if I attach a OneDrive file to Copilot, it can read and summarise it. What fails is direct access to OneDrive folders/files without manually attaching them. OneDrive Support then escalated my case internally. Their escalation team advised that there was no further OneDrive-side troubleshooting or escalation available and that this should go through Feedback Hub/product engineering, which I have now done. So at this point I’m also still waiting for a proper resolution. If you’ve found any other workaround or received any different guidance from Microsoft, I’d be very interested to hear it.