Noise is similar to that specific noise when looking for radio stations on old, valve type radio apparatus ,just more sharp and annoying ,like somebody crashing glass wrapped in aluminium cane shits .
(one more proof that Kemper is VALVE unit, not digital one )
Yes, it happen in Performance mode both when switching manually on KPA it self, and even worse if switching it via my Midi (bullet proof and flawless Tyrannosaurus Rex )
Also, there is delay . So when move from one to another rig - first is noise, than one or two seconds delay, and only then I get the sound of the new chosen rig .
In browse mode, everything is flawless and fine.
It happened with all of OS from the very beginning of introduction of Performance mode , now I am on 2.4 .
Since using of WD 40 doesn't help ,please give me some another idea !
Thanks !