The typing indicator feature in the bot framework is not being detected by the new Microsoft Teams ( Work or School ) application, and it seems to be functioning properly only in the older version of Microsoft Teams Classic.
Bot Framework SDK version is 4.18.1.
The implementation for the typing indicator does not involve any custom code, and instead, we are utilizing the default typing indicator middleware (ShowTypingMiddleware) that comes with the Bot Framework SDK. This middleware is integrated into the AdapterWithErrorHandler and it inherits CloudAdapter.
Also reported the same issue on various forums, but there has been no adequate response or resolution, and it is hoped that a proper fix will be implemented.
The typing indicator issue has been resolved in the latest update of Microsoft Teams, version 24033.813.2773.520. As a result, the feature is now functioning as intended in new teams.