Admins may be intermittently unable to add call agents to an existing call queue in the Microsoft Teams admin center

Title: Admins may be intermittently unable to add call agents to an existing call queue in the Microsoft Teams admin center
User impact: Admins may have been unable to add call agents to existing call queues in the Microsoft Teams admin center.
More info: When the issue does occur, admins may have received an error message.
Final status: We’ve confirmed that a code regression within a recent update caused a caching issue on the service side, resulting in impact. We’ve completed reverting the change across all impacted environments and validated this has remediated impact via service telemetry.
Scope of impact: Any admin attempting to add a call agent to an existing call queue within the Microsoft Teams admin center may have been impacted.
Start time: Friday, January 19, 2024, at 11:21 AM UTC
End time: Friday, January 19, 2024, at 6:00 PM UTC
Root cause: A recent update contained a code error causing a caching issue on the service side resulted in impact.
Next steps:
– We’re continuing our review of the impacting update to better understand the underlying cause of impact and prevent similar issues in the future.
This is the final update for the event.