MainStage 3 Playback Plug-in Drops Volume Randomly

Hey Guys,

Could really use your help on this one. I use MainStage 3 every week-a lot for the keyboard sounds, but I also frequently use the Playback plug-in for click tracks and backing tracks. The problem I am currently having is a weird one: every once in a while the sound from both Playback plug-ins will drop out completely. From song to song it is random whether this will occur at all, but when it does happen, for any particular song the volume will always drop out at the same spot for that song (for example song 1 the volume will not drop out at all, but for song 2 it will drop out at 3minutes,23seconds, and then for song 4 it might drop out at 4minutes,35seconds). Now here is the other weird part-if you click on the Playback plug in when this drop-out of volume occurs, you can see that the audio wave form is still there, and you can see that the Playback plug-in IS still playing through the track (I even have status indicators that show that the Playback plug-in is going through the various Markers of the song). One final weird aspect of this situation: if I stop the track and then start it from whatever marker preceeded the volume drop out (that always seems to be at the same spot for whatever song it drops), then there is no dropping of volume-it will play through until the song finishes.

This problem *****, any help on this one will be greatly appreciated. Some background: I use MainStage 3.0.2 on a MacBook Air running OS X 10.8.5. I use Axiom controllers and a Presonus Firestudio Project, however the problem will occur even when I am not using a MIDI controller and also when I'm simply using the built-in Audio inputs and outputs.