I am new to MMJoy and want to use it to replace the outdated Thrustmaster Cougar controller.

For test I have setup a Leonardo and programmed it for 2 buttons.

In MMJoysetup I see the button box turn red when I press the button on the joystick.
I have assigned this button 01 to Joystick Button 1 H/W.button 1 Mode switch.

When I look in the windows devices I see the MMJoystick with the buttons.
Only, when I press the button it doesn't turn red in the windows configuration, only in the MMJoysetup.

What am I doing wrong?