The on screen page that has the leveling mode, does not allow me to move the Z axis neither up nor down in the .5 increments. I try to adjust the Z axis after leveling the bed (similar to the video tutorial) so that I can try to fit a piece of paper but the buttons do not respond when pressed. This has happened to me using fw 126.96.36.199 and 188.8.131.52.
Also noticed that the "Restore Factory" button does not respond either. After clicking the button all the settings stay the same.