Bot not invokable in Group in New Teams variant.

Our team is experiencing issues with bot interactions and tab visibility in the latest version of Microsoft Teams. Here are the details:

Bot Commands in 1:1 Chat: In the previous version of Teams, we could call bots using the "@botName command" in 1:1 chat windows. However, in the new Teams app, this feature is encountering difficulties. Are there any changes or updates related to bot command handling in the new Teams app interface that we should be aware of? It happens very often that either we are unable to call the bot, or we are not getting the second level suggestions. But it used to work and still works fine in Old/ web-based Teams app. **Update

Title : Bot not invokable in Group in New Teams variant.

Description: In the new MS Teams variant on Desktop and web both bot is not get invoked by using "@Bot name". If a user install the bot in new teams app it greets back with welcome message and all the commands works in direct to bot channel, or personal scope. But when in group, if it is try to invoke the bot Users do not see any suggestions for get bot or bot name in the selection list. And hence user has no option to use Bot in the group scope.

Once the same user switches back to Old teams either in Desktop or Web, user is able to call or invoke the bot using "@". User either gets option to Get bot or gets the Bot name in a suggestion popup.
For any new teams User A, if any user B using Teams from old teams app or Web invoke or initiate the conversation by adding the bot in 1:1 chat or group chat then the app can be used between both user A and B. But if A wants to use it with any user C, he cannot invoke the bot in chat with C.
According to the configuration in manifest all of these come under group scope where number of members in a group can be minimum 2 or more than two. In our case we identify based on context activity data that only 2 members are involved, and we treat it as 1:1 conversation.

Tab Visibility in Chat Window: Tabs are not visible in the chat window of the new Teams app; however, users could access tabs within the chat window seamlessly in the previous version. Could you provide guidance on how to enable tab visibility in the chat window of the new Teams app? User Interface Toggle: Our users have the option to switch between the new and old Teams app interfaces using the provided toggle button. Is the issue persistent in both interfaces, or is it specific to the new Teams app?

Additional Information: Microsoft Teams App Version (New): [23335.232.2637].4844

Microsoft Teams App Version (client version): 49/24010419114 (Early access)

Bot Framework and Teams Toolkit Versions: v5.4.0

Any help in resolving these issues would be greatly appreciated. If there are any specific configurations or considerations for the new Teams app, please provide guidance on how we can address these challenges. Thank you for your prompt attention to this matter.

Best Regards, Sandeep Kumar