Q: When I play a song in Ableton Live that has volume level automation, the ProjectMix I/O's faders move along as they should.  However, when I touch one of the moving faders, it stops moving and doesn't start again until I re-launch the software.  Why is that and what can I do about it?

A: This Ableton Live feature makes it easier to record new automation and override pre-recorded fader movement.  Click on the red "Back to Arrangement" button in Live's Transport Bar to re-activate fader movement.  It is not necessary to re-launch the application.  Please consult the Ableton Live documentation for further info on the implementation of the Mackie Control protocol (used by the ProjectMix I/O).