I wonder if @aaronpk would know what’s up

I’m assuming this is about audio being out of sync on the USB webcam output of the ATEM? My troubleshooting tips: • Use a short USB-C cord direct from the ATEM to the computer • Some slower CPUs just don’t work well • Contact blackmagic support if all else fails

Perfect, quad core should have no problem, tho I don’t have that MacBook myself. Try power cycling the ATEM and if it’s out of sync immediately it’s probably a bad unit. Sometimes after it’s been on for a few days that problem can show up and rebooting fixes it.