**Commvault – OneDrive Backup Discrepancies** A issue affecting Microsoft OneDrive backup operations caused an increased number of failed backup items for customers across the East US2, France Central, and Canada Central regions. The incident lasted approximately 123 hours before being resolved on September 22, 2026.
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This incident has been resolved.
We are aware of an issue affecting Microsoft OneDrive backup operations, resulting in an increased number of failed backup items for some customers. Our engineering team is actively investigating the issue and working to determine the root cause. We will continue to provide updates as we learn more.
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