I understand that there were certain production releases that have this issue (link below) and I am having the same problem. It is not noticeable when playing, but when the guitar is completely muted, it is very obvious both from the amp and when mic'ed into the house speakers. I would like to hear from anyone who had this issue and what was the help/fix provided by Line6?
I have raised a support ticket and I am expecting a response from them anytime soon, but I would like to hear from people who had this similar issue. Thank you, everyone!