I decided to give it one more try with a Mission Engineering EV pedal (specifically made for the pitchfactor).  I have the exact same problem.  This is the 6th pedal I’ve tried.  Can I send the pitchfactor to Eventide and have them attempt to resolve the issue that way?  I’d really like for this to work and don’t want to sell it to somebody else knowing that expression pedals don’t work right with it.