Here is an image of the touch bar layout
I normally connect my MBP to two external monitors. When I try to use the expose and launchpad (The third and forth icons from the left) from the touch bar, there is no reaction at all.
The behaviour does not change when I disconnect the usb-c to display port cables.
But if I use CTRL+UP, I can activate expose. I can also access launchpad via the Dock.
Did I miss any configuration?
The hardware is MacBook Pro (15-inch, 2017)