the program changes are working across all the factor pedals, but now i cannot get expression to any pedal except the pitchfactor. my midi chain is as follows:

tech 21 midi moose, midi solutions quadrathru, (input 1 rjm y-not, input 2 pitchfactor, [out of pitchfactor into space], input 3 modfactor [ out of modfactor into timefactor], input 4boomerang looper)