Using New Outlook on Windows for professional communication and productivity
Looks to be a reported Service Health issue. Shows as Restored.
https://admin.cloud.microsoft/?#/search/:/alerts/MO1469271
Users received a "GetSections returned no conversation history" error message.
Sep 8 2026 12:28 PM CDT (17:28)
We reverted a recent service update that was intended to improve chat-loading functionality when accessing m365.cloud.microsoft and confirmed through service telemetry that the error rates have subsided and service is restored.