I recently bought a eventide modfactor and updated it with help from a friend who also uses an eventide pedal. Before update the undulator worked great (one of the reasons i bought the pedal was for the undulator) but since i updated the pedal the undulator like a high pitched almost glitchy noise? Ive tried different amps,leads, putting in its own loop but i have no idea how to deal with this issue. Anyone help out there? Thanks.