Hi @James James
Please try to check the activity and messages using the Teams web client to see if this issue occurs.
In addition, it is recommended to report this issue directly to the Microsoft technical support team by opening a support request, and they can check the advanced logs and investigate the situation further. The Microsoft 365 global administrator in your Microsoft work or school account can contact the Microsoft 365 support team on the back end through a support request. Here is what your Microsoft 365 global administrator should do next:
- Submit a service request: Global administrators should create a service request with Microsoft Support to get advanced technical help and diagnostics. For detailed instructions on how to get support, see Get support - Microsoft 365 admins.
- Call Microsoft Support: For more detailed help instructions, please find the corresponding online support: Global Customer Service Phone Numbers - Microsoft Support
If you don't know who to contact at your company for help, try asking the person who gave you your Microsoft 365 user account and password. Reference: How do I find my Microsoft 365 admin? - Microsoft Support.
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