I have my PB with local control off, and have it play notes into Ableton using a midi to USB cable. From there the midi is converted to audio and sent to Expert sleepers Usamo and then back to my unit.
The problem is, I get stuck notes, but only when I play chords using the lower half of the keyboard, and while +1 octave is selected. A very strange behaviour which is repeated no matter what I do (factory reset/calibration ect).
When using the synth with out this midi setup with local control on, I get no issues like this.