I have been working on my newest video for over 3 months without a single problem. But last night I went to export it and suddenly the last few seconds of my vid only had the video 2 track showing
Then I went back into Premiere to check on it and when I scrubbed the timeline it kept alternating between video 1 and video 2 showing nothing but black!

I don't understand it. I've tried rebooting, deleting the preview files and playing with the track visual settings. Nothing has worked!
None of my other vids that I'm working on have this problem. I don't know what to do. HELP PLEASE!!!!