Changing any of the setting under touchpad settings doesn't hange anything. Enabling reverse scrolling or horizontal scrolling has no affect on the touchpad. This was tested on two different macbook airs. This is on a live distro.

I have the same problem on Kubuntu 17.10 running KDE 5.9.4.

Any updates on this? I'm waiting as well. Not working for me too. Anyway I can check some logs?