There are several different upgrades to the Digital Negative system. I am not certain how you have set yours up. You have chosen to use the curves that have a very specific shade placement and are an older system from 2012. It will still work - so no worry. But, a few questions::
1) Did you organize your inks in the correct positions?
shade 2= C
shade 3= LC
shade 4.5 = LK
shade 5 = LM
2) Have you read the New Piezography Manual and do you understand the Gamma 2.20 workflow?
3) Are you on Mac or Windows?
3a) If Mac - are you using QTR Print Tool to print from and selecting No Color Management and is Gamma 2.20 or Adobe RGB 1998 the embedded profile?
4) Are you using Pictorico OHP Ultra?
Please answer above and then we will try and help on the marks...