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@Bob > Do you possibly have deck 4's jog mode set to CDJ mode (not vinyl mode)?
Note 54 is the jog signal for "touching" (val 127) and "not touching" (val 0). CC34 is the change in movement. The software interprets it as "If Note 54 = 127 and there is a change on CC34, it is scratching / vinyl movement" or "If Note 54 = 0 and there is a change on CC34, it is a pitch bend."
Check that first.