I sure hope someone has already solved this problem. I am running Mac Mojave 10.14.2 and Audacity 2.3.0. While attempting to stream record from my Allen & Heath Qu-Pac (16 Channels) via a USB B connection, as soon as I select record in Audacity it completely closes Audacity. If I attempt to record 14 channels it seems to work perfectly. Any ideas of what is going on?