Hi @Anna,
I’ve thoroughly reviewed the details you provided and conducted an investigation on our end. I’d like to inform you that there is an ongoing service incident affecting multiple tenants, which aligns with the behavior you’ve reported.
Our developer team is aware of this issue and is actively working on a resolution to roll out a fix as soon as possible. For further details, please review this incident report in the Service health menu in Microsoft 365 admin center or this link: Service health - Microsoft 365 admin center
In the meantime, please contact your administrator to access the Admin Center, navigate to Service Health, then select Active Issues under Microsoft and choose the title listed below. After that, click “Are you experiencing this issue?” and select Yes.
This will notify the Microsoft Teams team about your tenant and help prioritize the update for your environment as soon as possible, reducing the risk of similar issues in the future.
As this is a widespread incident affecting many users, you may consider accepting my answer so that others can see it and take the same action, which will help the Teams team expedite the development of a fix.
We truly appreciate your understanding and cooperation. I will continue to actively monitor the situation on my side and provide you with any necessary updates.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment”.
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