On March 19th, 2026, at approximately 06:43 UTC, an issue was identified affecting ODC, where some users were unable to complete the login process for the ODC Portal and ODC Studio when using external Identity Providers. Affected users encountered an error message stating "Email verification not supported" or were blocked from accessing their accounts because the system could not verify their email addresses via the external provider's claims.

The incident was caused by a configuration change intended to strictly enforce email verification from external providers. This change inadvertently bypassed a native fallback verification process that certain users relied upon when their external providers did not share specific verification data.

The issue was resolved by 11:00 UTC on March 19th following a rollback to the previous service versions. To prevent recurrence, future updates to this functionality will be implemented via a gradual rollout plan, including additional validation steps to ensure all identity provider configurations are fully supported.