I’m getting weird digital noise, almost like when you’re sitting with your guitar too close to a computer, when in dual routing (4cm). it’s not loud, but it’s loud enough to be a dealbreaker, forcing me to return this thing. does it w/all 3 of my amps. This doesn’t happen w/my Helix in 4cm. is there a fix for this? i’d like for the H90 to be a keeper, but only if i can solve this issue. thanks