Arpage SX malfunction

I want to use “Arpage SX” to generate my own sequence on a midi track containing 4 notes chords.
I use the mode sequence and I drop my pattern on it.
Main options are :

  • direction up
  • sort normal
  • Midi seq - sort by pitch=no
  • sort by note lowest

The result does not correspond to the normal behavior : the output notes are sometime the input note: normal, but also notes 1 octave up or down fron my midi chord notes on input

Steinberg hotline do not want to consider malfunctions as a problem

Is the function correctly works in your environment

(sorry for my english whish is a little tired)
Thank you