Microsoft 365 Alert – Service Degradation – Microsoft OneDrive – Users may not have been able to load the search bar in OneDrive – RESOLVED

01/05/2026 08:44:00 AM

NHSmail Reference: INC46814843

Microsoft Reference: OD1296516

Issue Status: RESOLVED

Issue Description: Users may not have been able to load the search bar in OneDrive.

Current Update: 01/05/2026 08:37:00 AM– Microsoft has confirmed that the recent change that they rolled back contained a regression that resulted in this impact. After completing this rollback, they were able to confirm that this action resolved the through service health telemetry and confirmation from a subset of affected users.

Scope of impact: This event impacted any user attempting to use the search bar in OneDrive.

Root cause: A recent service update contained a regression that resulted in this impact.

Next Steps: Microsoft are reviewing the responsible change to better understand what led to the error that resulted in impact and prevent similar future occurrences by improving their service update testing and validation phases.