On a Mac system (os 10.14.4) I have successfully made a 51 step target and saved it as a measurements.txt file with no errors following the directions carefully. Placed it into the QTR Profiles folder and dragged it and the .quad file I wish to linearize int the QTR-Linearize-Quad droplet - all inside of the QuardToneRIP - Profiles folder. The result is he creation of a measurements0out.txt but not a new “…-lin.quad” file. I have checked permissions and I see no obvious issue.
While it has been a few months since I last created a new quad file, this has worked in the past. All suggestions are welcomed.