Hub-to-Shroud Diagramm
 

I want to create a Hub-to-Shroud diagram of the measured pressure along a stage of an axial compressor. By setting "Pressure MCA on Hub to Shroud Line" as my X variable and "Span normalized" as my Y variable I obtain a chart with all my sampling points positioned in a vertical line at a certain constant pressure. If I change the X Variable to "Pressure ACA on Hub to Shroud Line" the sample points then form the correct curve. Did I make a mistake during the settings in CFX-Pre so that CFX-Post can't calculate with mass circumferential averaging? All my other charts are correct. Thank you.