Do I remember correct that TB worked on the Fb before? Or maybe now? On my MBP the TB-screen turns black if I touch the grey smiley close to the esc-button. But as I remember it, the TB was working for Fb before.
MBP tb 13" 2017. macOS 10.12.6
MBP tb 13" 2017. macOS 10.12.6