I have no ideas. Seems unlikely that both units would have the same fault.
My guess is that it is some kind of cabling or connection problem at your end, but hard to say what.
Sorry not to be much use – this may be one that cannot be remotely diagnosed. Things to try:
1) Different cables
2) Re-initialize the unit (again)
3) There is a MIDI self test on the Factors – power up with left button held down. Connect a cable between MIDI in and out. Turn the knob until it says "xx MIDI test". Push the knob. Let it run for a few minutes. It should say PxE0T0, where x is some number. If there is a non-zero number after the E or T, this indicates a hardware problem.
4) Talk to GSC – there may be issues that you are unaware of.