Could there possibly be something wrong with the particular i1 Pro 2 that I have?
Slight vertical placement change of the colorimeter can change a TN panels results significantly, and I warned you about dispcalgui calibration not always working well; it could be a number of things which negatively affected the calibration which is why recommended trying the basICColor 14 day trial and using it to calibrate instead, then verifying with HCFR.