A Microsoft file hosting and synchronization service.
Hi All,
The issue you all encountered was related to service incident OD316670 - External users are unable to download multiple items in OneDrive which is resolved as of Friday, January 21, 2022, at 7:07 PM UTC
More info: Impact was specific to external users' accessing shared files via an anonymous link.
This issue only occurred when users were attempting to download more than one file per attempt. Users could circumvent this issue by downloading files individually, although we understand that this may have not be a feasible option for those performing larger operations.
Start time: Thursday, January 13, 2022, at 8:19 PM UTC
End time: Friday, January 21, 2022, at 7:07 PM UTC
Tenant administrators can view current information and updates on Service health dashboard at the link here:
https://admin.microsoft.com/AdminPortal/Home#/servicehealth/advisories/:/alerts/OD316670
Please check again at your end to confirm if the issue is resolved.
Regards,
Neha