Hi guys, It just happened today, OVB worked fine before, not sure what I done.
The problem is there are no audio signal with 4 tracks in A4 (I’m sure there has sound signal of each Trk1-4), but preFX and postFX channels have received audio signal from OVB as usual.
Does anyone face this problem?
what’s OVB? Is this the name of your A4?
Check if the Channels are active in OB Control Panel. I run into this issue with the Ext-In a lot, getting no sound and wondering 
Until i see its not active in OB CP - again! 
I get this a lot. I have to go into the OB control and select them all again.
Usually happens when loading ob via push 2 into a new midi track
What do you mean select them all again? Can you explain all solve it ?
Thx !
Sorry. I mean in the actual control panel. I have to go in and set them up manually.