I'm curious to know if anyone can check to see if they have this issue.
I have my MacBook Pro audio going out through USB to the S11, I usually have it routed to 6/7 (channel 4 virtual deck), but I have tried every USB input channel. When Serato is closed and I have an audio source playing on the Mac i.e YouTube, Loop player, when I move any fader I get audio interference, like a high pitch glitchy sound. When I open Serato, and do not change any other setting or anything, the audio works as it should. As soon as I close Serato the issue is back. I have unplugged everything except the USB and I have tried multiple chroma cables. I have updated firmware, using OS Catalina, check all permissions. I'm waiting for Pioneer to respond to my issue, I'd appreciate if anyone can help me here, cheers!