Audio Level Too Low

I am using a brand new MacBook Pro.

I am running a fully updated version of CA.

I am running Mojave that is completely up to date.

I have changed the input source in CA's audio preferences to the MacBookPro's microphone, and back to the digital mixer that I have plugged in via USB and back again, and back again.

I have made sure that the sample rate is 48000 and the buffer is 512.

I have tried checking and unchecking "Attempt to force hardware to match document sample rate.

I have attempted to create a new aggregate device in audio devices and run the audio through that.

I can record audio from either source in other programs, the laptop is receiving audio.  I can playback audio from CA totally fine.

But, when I've got this program up the green bar monitor reads "Audio Too Low" and it only records silence.

I have uninstalled and reinstalled CA.  Nothing has fixed the issue.

I had run CA fine before months ago and everything ran fine.  Then I upgraded the OS.

Please tell me there is something that I am missing.