Yesterday I installed Sound Studio 4.9.6 on to a MacBook Pro running 10.15.4. I went to Preferences, chose Edirol UA-5 as my input, Built-in Output as my output, and checked Playthough input to output. But when I pressed record, the line remained flat. No sound in being detected. I rebooted multiple times, but still no sound. To test my set-up, I unplugged the usb cable and plugged into a different MacBook running 10.11.6 and Sound Studio 3.6. It worked perfectly, as it has for years. I could hear the music and the visuals appeared. So I replugged the USB back into the MacBook Pro (10.15.4) Sound Studio (4.9.6). Nothing. It detects the UA-5, but no audio is being input. Is there a setting I'm overlooking? Thanks!