I hope someone can help me...My onboard expression was working just fine but started squeaking so i watched a video on how to take it apart, clean and lubricate and then reassemble. Im pretty sure i put it back together properly but when i fired my Helix up the expression pedal no longer sweeps. I ran the test and all other functions including the toe switch test out fine. I feel like i may have missed something when putting everything back together and was hoping someone has had the same experience and can tell me what to do to fix it.