The windows (and sunroof) need to be recalibrated. The window switches are actually five-position switches.

Middle is off, normal resting position.
Back one position (very soft touch) is down.
Forward one position (very soft touch) is up.
Back two positions (mashing it) is express down.
Forward two positions (mashing it) is express up.

The one-touch positions are the ones that will not work properly until things are recalibrated, and you have to do the recalibration for each window.

From the manual: