On March 24, 2026, at approximately 07:55 UTC, the Admin Center Client experienced an issue where users were unable to view user groups in the Group Management view and users in the User Management page in certain cases — instead seeing an infinite loading screen. The issue was caused by a recent update to a shared part of the Admin Center interface that controls how loading indicators are shown during searching. In the Group Management area and UserView, this change accidentally made the page think it was always still loading, so users saw a never-ending loading screen and couldn't view groups (and in some cases users). The problem was fixed by rolling back that change, which finalized at 09:06 UTC.

To prevent recurrence, we are conducting a post-incident review focused on improving monitoring and alerting for failed page renders in key Admin Center views, adding automated synthetic tests, and documenting recovery runbooks to reduce future resolution time.