Loss of Audio

I am having a problem with exporting my storyboards to QuickTime movies. The process seems just fine but I lose 50% of my audio.I have a 90 minute feature and my scratch track disappears at about 45 minutes exactly.If I try to bounce out just a portion, say just 10 minutes, then there is only 5 minutes of audio.I know this is a large file, but what’s up???

I have never heard of this issue before. You should write in to support@toonboom.com so that they can diagnose what’s going wrong.