system settings touchpad page doesn'r save settings

On my laptop running KDE plasma 5.24.1 whewn I open systemsettings>input devices>touchpad this advice appear:

Active settings don’t match saved settings.
you currently see saved settings.
if I click on “show active settings” or on the red button with cross the advice disappear and I can change settings but the “apply” button doesn’t greyout so I cannot change settings.
how can I save settings again?