[MikeLip]

I believe you need to "Solo Safe" (or whatever its called) your audio or aux tracks (depending on how you've got it routing).

Ctrl-Click on the Solo button for either the audio or aux track. The Solo button goes gray meaning its in Solo Safe mode.

If say you're routing your audio to an aux via the audio's Output then when you solo the audio, you are effectively muting the aux preventing any sound playing. Solo Safe will prevent output aux's and sends to aux tracks from muting when you solo.

Mike.