Monitoring - Microsoft has identified the root cause as a platform regression affecting app branding display in Teams. A mitigation has been deployed and is currently rolling out. Microsoft's engineering team continues to monitor the rollout and validate the fix.
Users may see the correct custom logo restored as the mitigation propagates. No action is required on your side. We will continue to monitor and will share additional updates as progress continues.
Aug 20, 2026 - 16:39 UTC
Update - We have escalated this issue to Microsoft and are actively working with their team to address the issue. We will provide more details when they are available.
Aug 20, 2026 - 00:10 UTC
Identified - We're investigating an active issue where end users in Microsoft Teams are seeing the default Moveworks logo instead of their organization's custom bot logo, despite a custom icon being set in the app manifest. This appears to affect the bots published via the Teams App Store (store auth) rather than a single tenant. Logging out/back in or clearing the Teams cache resolves it for some users. Our engineering team is actively investigating and we will share more details as they become available.
Aug 19, 2026 - 14:21 UTC
Identified - We have identified authentication failures affecting SharePoint Online integrations that use Microsoft App Store authentication, following Microsoft’s deprecation of the legacy ACS authentication method. As a result, legacy SharePoint knowledge ingestion will fail for affected customers.
As an immediate workaround, please follow the SharePoint Online Azure App Registration guide.
Engineering is working on a JWT-based update for Microsoft App Store authentication. We will share additional updates as they become available.
Aug 10, 2026 - 13:41 UTC
Resolved -
The intermittent unresponsiveness of the AI Assistant in Microsoft Teams has been resolved. Responses have returned to normal, and we have confirmed stability through continued monitoring. No further action is required from customers.
Aug 21, 17:20 UTC
Monitoring -
Error rates on outbound calls to Microsoft Teams are declining and the Assistant is responding normally for most requests. We are continuing to monitor to confirm full recovery.
Aug 20, 14:58 UTC
Investigating -
We are seeing intermittent failures on outbound calls to Microsoft Teams, which may result in the Assistant not responding in Teams. There is currently an elevated volume of reported Microsoft Teams issues, and we are actively investigating whether this is the cause.
Impact: Assistant messages in Microsoft Teams may intermittently fail to deliver, and users may not receive a reply.
Impacted regions: All
We will keep you posted with further updates.
Aug 20, 14:55 UTC
Aug 20, 2026
Unresolved incident: Custom AI Assistant Logo Reverting to Moveworks Default (Microsoft Teams).