Currently Being ModeratedSep 22, 2012 9:49 PM (in response to originalvonster)
Is the missing track by any chance using Logic's arpeggiator? If so please note that arp tracks have to be bounced in real time bcause they need real time Midi clock, when bouncing offline these tracks will be missing.
Also check if all tracks are set to "Stereo Outputs 1-2" before bouncing.
Try a real time (online) bounce instead, everything you hear during the bounce will be on the bounced track, that way you have more control over what you're actually bouncing.