After yesterday morning’s #hamradio frustrations things improved. My VHF Packet setup started working again all by itself. Then this morning I figured out the reason SDR-Control stopped decoding FT8 was because, in a vain attempt to get WSJT-X to transmit audio on my M2 Mac mini, I had changed the audio to 44.1KHz. Changed it back to the normal 48KHz and SDR-Control works.
Still have no idea how to get WSJT-X/JS8Call transmitting audio though.