getting issue over last few days with ess version of k9 pro,after about 10 minutes or so the audio cuts out on one side,right side, but if i turn the gain up to middle or high setting sound goes back to normal,then ts ok untill i turn off and back on again and have to do the gain switch again,does this in all modes not just usb,i have connected the k9 to a seperate computer to check if its not my pc but just does the same error,anyone else having this issue?.