NavigationView.ShoulderNavigationEnabled doesn't work

[AlexRUiLs]

I am trying to use gamepad bumpers to navigate in menu of NavigationView in my UWP app.
I enabled NavigationView.ShoulderNavigationEnabled but it doesn't work still - bumpers don't switch menu items.
Please assist to make it working.
Even in WinUI 2 Gallery app it does not work.