Microsoft Looks Into Issues with Teams Assignments Widespread assignment management issues with Microsoft Teams have prompted the company to launch an immediate investigation This article explores issues teams assignments. . When attempting to open, set, or delete assignments in Microsoft Teams, users are getting error messages.

Service interruptions were caused by a recent backend change that didn't finish correctly. For timelines and updates, administrators are referred to the Microsoft 365 admin center (incident ID TM1230627). The Assignments, Classroom, and Grades apps—three essential educational and productivity tools in Teams—are the main targets of this outage. Errors like "There was a problem reaching this app" have been reported to occur across numerous users and organizations, indicating that the issue affects desktop, web, and mobile clients.

Although not widespread, it interferes with educators' and learners' use of Teams for Education, reiterating earlier incidents such as TM1185134 that affected administrators in Europe. An unfinished service update intended to improve content retrieval for Assignments and related tabs is the cause of the interruption, according to Microsoft. This regression reflects previous Teams problems, like feature updates that resulted in unresponsive clients or unsuccessful group creation attempts.

After identifying the problematic deployment, engineers are correctly redeploying it while conducting further investigation. To restore functionality, the business is actively restarting the impacted backend components. Validating the redeployment is one of the first fixes, and the admin center's service health dashboards give real-time status. Infrastructure monitoring and ownership handovers were used as workarounds in previous resolutions, such as those for TM1197326 on channel creation.

Microsoft says that more updates will be available via TM1230627, possibly by the following working day. In order to prevent cache buildup, affected users should check the admin center first and refrain from making repeated attempts. Temporary relief can be obtained by clearing the Teams cache using %appdata%\Microsoft\Teams on Windows or ~/Library/Application Support/Microsoft/Teams on Mac.

Although a complete recovery is still pending the fix, switching to the web version or signing in/out may help. If they haven't already, IT administrators are encouraged to report through Health > Service Health. This incident highlights persistent Teams vulnerabilities caused by fast update cycles, such as TPM errors or conflicts with Windows Update KB5003169. Such outages increase the need for thorough pre-deployment testing because Teams is essential to hybrid work and education.

According to standard procedure, Microsoft keeps an eye on the post-fix to avoid recurrences.

Although there is no publicly available ETA for a complete resolution as of February 11, 2026, work is moving forward. X, LinkedIn, and LinkedIn for daily ZeroOwl. To have your stories featured, get in touch with us.