Pan at centers cancels volume.

Not the cabling, because it does it with Midi tracks that were already present and all I have to do is move the pan off center and you can hear the track. The level meters show there is sound there but it gets canceled out when pan is set to 0.

Thank you Roger, can you please tell me where I can check to see if I have channels paralleled? The strange thing is that this has happened to all my old recordings as well plus any new track that I call up. Is there any default parameter that would cause this to happen?

Eriksimon, thank you for your reply, the music from other apps does sound normal. I have tried restarting the program and I have restarted my computer. I have checked all my cables and they are fine as well. If I rotate the pan knob on any track so that it's not on 0 (dead center) I can hear the track, if I set the pan knob to even -1 or +1 I can hear the track and the more I turn the knob the louder the track gets. The other strange thing is that it no longer pans the sound it just makes it louder. It's like the pan knob works as a volume knob and center is 0. This all came about very suddenly one minuet it was fine the next it wasn't. I don't know if I accidentally changed a default parameter that changed the function of the pan knob.

The problem seems to be fixed. I was having problems hearing my metronome, so I remembered I had changed it to simple mode, when I changed it back, everything seems to be working normally again. Thank you everyone who made suggestions.

No I have them set to Stereo output.