I have following problem with Audition CC (I'm pretty new to the software). I've made a multitrack session to produce 5.1 sound from stereo one. I've done editing, add some effects to each channel (stereo expander, automayic phase correction, FFT filter, center channel extractor etc.) and now it's time to export. I choose to export each channel separatelly but unfortunatelly, each track have different lengths (they are all the same file, snapped to the begining). When I select each one in the program all says start at 0:00:000 and end at 0:30:000 but when I export only central channel have that length. Other have 29:something, 30:something or even 31:something. When I export merged files the length of the file is 31:something. On the timeline everything looks ok, also when I playback everything is on time and ends at 30:00.