I am trying to use my Helix as a aggregate audio device with a MOTU 624 on macOS Mojave 10.14.2, even with the latest Helix Mac driver I can only get it to work on 48K I cannot get it to work on 44.1k. I am using Cubase 9.5.41 and Digital Perfomer 9.52. Even if I try using the Helix on its own as my Mac audio device, when I go into Audio Midi setup the only Sample rate available is 48K.   Has anyone succeeded in using the Helix over USB on macOS at 44.1k?