Azure BOT communication issue with Teams

I have a question

Sharing following communication details about a Azure BOT, which is deployed in Teams. But there are some issues in communication, please help.

1. Azure Bot created in Tenant A(Tenant id - b6b9c2b3-3f92-4643-afb2-8e15275bf764). APP Id of the BOT is fc60af25-4922-4ab2-85b1-03810b7e6ea7.
2. Bot Type- Single Tenant (this is only supported by Azure now)
3. Supported account types - Multiple organizations (app registration - Authentication - Settings), did this because of requirement of cross tenant communication.
4. BOT channel - Teams
5. BOT deployed in teams (in Tenant B - tenant id -86dd60b0-86b8-4604-be2a-6d607879e676)
6. Admin consent granted on Tenant B using the url - https://login.microsoftonline.com/86dd60b0-86b8-4604-be2a-6d607879e676/adminconsent?client_id=fc60af25-4922-4ab2-85b1-03810b7e6ea7&redirect_uri=https://token.botframework.com/.auth/web/redirect
7. In BOT code using new SDK (4.17.1) (botbuilder-core==4.17.1, botbuilder-schema==4.17.1, botbuilder-integration-aiohttp==4.17.1, botframework-connector==4.17.1)
8. Getting Unauthorized error in turn_context.send_activity (received the message successfully in on_message_activity)
9. Sharing the Teams-BOT-Teams communication log. Please help me in resolving the issue.Communication_Log_sample.txt

Communication_Log_sample.txt

Read the attached Communication_Log_sample.txt first, then trace the bot code path from on_message_activity to turn_context.send_activity. Done means identifying the cause of the Unauthorized response in the cross-tenant Teams setup and documenting a verified resolution.