[feryano]

Thanks for your suggestions. The inputs are not available in sound/system preferences. No inputs available under no circumstances I could even hear the output through my hdx. The interface/16x16 has to lights on, one yellow and one green. It’s non-responsive. My own judgment is that the interface has some kind of malfunction.
Also, I’ve been trying to update my info but can’t do that either.
My system:
Mac-pro black 64 gugs ram, hdx system, protools ultimate 2021