Can you try changing your Capture Method to “Windows 10 (1903 and up)” and see if it solves your problem?
This is likely due to a failed install of GameInput 2.2, and it will be fixed in the next Preview build. In the meantime, you can manually run the installer from "C:\XboxGames\Minecraft Preview for Windows[there_may_be_a_number_here]\Content\Installers\GameInputRedist.msi"
This is fixed now. Xbox One, Xbox One S, and Xbox One X customers should be receiving Version 1.21.111, which should be working.