Logic Pro 9 Audio Track Output signal present


New Member
Here is the scenario. I have created 2 instrument tracks and 3 audio tracks in a new project.
I have added Apple loops to every track.
Drum loop (instrument track) bass loop (audio track), electric piano loop (instrument), orchestral
strings loop (audio) and guitar part loop (audio).
For some reason I am not getting any output signal
from the strings loop. No signal
whatsoever. I've tried numerous
fixes with no positive outcome.
Can anyone help?

Equipment Mac pro 8core 6
Gigs. Logic 9, Lynx Aurora converter/interface
with AES 16 card.
any signal