Microsoft 365 Alert – Service Degradation – SharePoint Online – Some users may be unable to open SharePoint Online libraries or recycle bin from navigation library links – RESOLVED

25/11/2025 08:35:00 AM

NHSmail Reference: INC46689736

Microsoft Reference: SP1189527

Issue Status: RESOLVED

Issue Description: Some users may be unable to open SharePoint Online libraries or recycle bin from navigation library links.

More Info: When opening the library or recycle bin from navigation library links, a redirect occurred to an xml page instead of the library content, but a page refresh displayed the content as expected.

Final Update: 25/11/2025 08:15:00 AM – Microsoft determined the latest Service Worker build was deployed asynchronously from the latest version of the manifest, which introduced a mismatch and resulted in impact. They’ve pushed the Service Worker build to 100 percent to align with the latest manifest and confirmed with a subset of affected users that this resolved the issue.

Scope of impact: Impact was specific to some users who were attempting to open SharePoint Online libraries or recycle bin from navigation library links.

Root cause: The latest Service Worker build was deployed asynchronously from the latest version of the manifest, which introduced a mismatch and resulted in impact.

Next steps: Microsoft are reviewing their update release procedures to ensure similar dependencies are identified and taken into account when being deployed to prevent this from happening again.