Kemper high pitched noise + white noise-ish noise

  • Hey ! hope everyone is doing well

    I had a weird kemper profiler (rack) noise which I can't rid of ... I attached the zip file containing the noise that I'm experiencing and when I play a note it disappears but after the sound starts to decay it appears again.

    so the profiler rack is in our studio rack . I tried chaining cables but it doesn't help ... I tried different guitars , updated the OS , test the SPDIF outs , turn down the monitor outs ... none of them help. I even disabled the amp section in rig manager but I still can hear the noise at maximum master volume (I'm Using RME Fireface interface)

    I noticed the when I move my guitar some of those noises disappear (you can hear it on the file somehow ... I moved my guitar) but that "high-pitched noise" is still present. so I don't think it could be a feedback noise...

    I can use noise gate to eliminate the noise but as soon as the guitar sound gets quiet , the noise is audible.