We are not able to repro the issue, as it is working fine from our end.
You have Microsoft Teams version 24243.1309.3132.617.
You've got the latest version. It was last checked on 24/9/2024.
The client version is 49/24092201200.
You can enable Developer Tools in your browser to capture any failed network requests when the sign-in fails. If any specific error codes or details appear in the logs, it could help further isolate the problem.