I opened a capture 3 session on laptop. Recorded into channel 3 on my AR16c. I heard the signal in the monitor and the board got the signal. Capture 3 recorded something. When I hit playback I see the level meters on track 3 and 17/18 respond. So something is there. I don't see a wave form though on the timeline though - it looks straight.
I can't hear anything on playback. During playback 3/17/18 act like there is a signal. I tried with and without the USB return. It seems like capture 3 has a signal but it doesn't get back to the board.