I can set up an instrument track in Pro Tools with Scaler and create a chord pattern and key lock the pattern [the "Scaler Track]. My Midi Controller [M-Audio Oxygen Pro 49] can play the Scaler chords in the pattern using the key lock.
However, when I route the Scaler track to another Instrument track with another plugin (i.e. Xpand) (the “Expand Track”) it will only play the Scaler chords in the pattern by clicking on the Scaler chords in Scaler. The Midi Controller will not play the Scaler chords that have the key lock.
Why has the Midi Controller stopped working in the new configuration?