Wacom DTK-2451 Tablet Driver 6.3.32-3 Dec 5, 2018
... charge your tablet more often than usual. - DTK-2200, 2400 & DTH-2200, 2400: When Pen Handedness is set to Left Handed, the ExpressKeys on either side of the pen display will be pressed simultaneously, resulting in loss of functionality for one side of ExpressKeys. What you can do about it ...