After a few hours of troubleshooting, I’ve narrowed that the Steinberg UR44 driver is not compatible with Mac Big Sur.
When I install the Steinberg driver, Mac Big Sur won’t don’t recognize it and won’t show it as a device, which makes it non-useful.
But if you don’t install the driver, the dspMixFX won’t recognize the UR44, which prevents me to do basic rerouting of Mac audio through the UR44.
This one little hiccup is preventing me from doing a certain routing to my iOS devices, which is necessary for live streaming apps.
Now I am stuck to run it in very limited mode.
Please help. Thank you!