With a new MacBookPro Mojave 10.14.1, I connect an audio source usb from mixing console Yamaha MG12XU usb .
The software Mimo 5.0 see the source but there is no signal.
An other software (Audacity) see the source and record audio files.
I change the cable usb B to usb 3 without résolution.
It works with a MacBookPro 2012
Thanks for all