Putty in embedded mode does not work in the application.
Remote Desktop Manager is not able to execute Putty in embedded mode when Team Viewer's QuickConnect button is present in the title bar.
Solution
To resolve this issue, you need to disable the QuickConnect button in Team Viewer by unchecking the option Extra – Options – Advanced – Show advanced options – QuickConnect button – Configure – Show QuickConnect button.
This solution can also be applied to other applications such as Filezilla or Firefox.