-the sounds do, still, 'evolve' over time. Often a long echo becomes apparent when there is none in the patch. It is stopped by reloading the patch.
It's not quite clear to me what you mean hear. Please set your PitchFactor up in isolation with just the PitchFactor, a guitar and an amp with no MIDI in or expression pedal attached and make a quick cell phone video showing what you're hearing.