The below video was created at Wacom Support's request. It shows the problems I have calibrating the Pro Pen 2 which came with my brand new Cintiq Pro 24.
NOTE: While the calibration function seems to be broken, at least on the last – lower right – corner, and during the calibration process the arrow is at least 1/8 inch off the mark, I have NOT had any issues in my primary painting program (Rebelle 7.2) with the pen. In painting, the pen calibration seems perfect everywhere, including the corners. So maybe this is not a big issue, but thinking of the price I paid for this brand new Cintiq, and considering my past experience with Wacom monitors (my trusty old Cintiq 22HD) I would normally expect everything to be top notch.
Here is the video: