Microsoft 365 Alert – Service Degradation – SharePoint Online – Users intermittently may be unable to load the app launcher or navigation elements from some SharePoint Online sites – ONGOING

Announcements Arpan Das

24/04/2025 08:57:00 AM

NHSmail Reference: INC46512404

Microsoft Reference: SP1060756

Issue Status: RESOLVED

Issue Description: Users intermittently may be unable to load the app launcher or navigation elements from some SharePoint Online sites.

More info: Users may not see the gear icon to open the Settings pane on some SharePoint Online sites, and users may not be able to conduct searches on some sites via the search box.

Final Update: 29/05/2025 12:00:00 PM – Microsoft have completed the reversion of the offending change and verified with affected users that this action successfully remediated the problem.

Scope of impact: Any user attempting to load the app launcher or navigation elements from some SharePoint Online sites may be intermittently impacted.

Root cause: A service update has produced a traffic configuration issue for a subset of SharePoint Online service infrastructure, intermittently preventing users from loading the app launcher or navigation elements from some SharePoint Online sites.

Next Steps: Microsoft are investigating how the service update produced a traffic configuration issue for a subset of SharePoint Online service infrastructure, which intermittently prevented users from loading the app launcher or navigation elements from some sites, in order to prevent this problem from happening again.