No two finger scroll after updating to Windows 10?

I have a lenovo yoga 2 pro. After updating to Windows 10, I can no longer two finger scroll. I m not sure what the problem is, considering that two finger scroll is turned on (Settings > Devices > Mouse and Touchpad > Additional Mouse Options > Device Settings > Settings > Multi Finger > Two finger > and then check both Enable vertical scrolling and Enable horizontal scrolling)
Any clue how to fix it or where I should ask where people would know?
Thanks!

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