Major buzz when profiling with Stage

  • I have a Stage and am trying to profile a Marshall TSL. If I plug my guitar straight into the amp, everything is fine. There has always been a slight hum. But, when I plug my guitar into the Profiler and then run a cord from “send 1” into the amp, there is a very loud buzz/hum that is audible even if I am playing. I have tried a few different cords and moved the Profiler to a distant location in case there was some sort of electrical interference. Any thoughts would be appreciated.