The audio used in the video is actually flac. I tried to edit my post to include this but I’m new to this forum. I did try using mp3s however and they were still having the same problem. It’s not the audio track which is causing the problem. I also tried this across multiple Vegas projects and even a new project and still had the same problem despite using different audio tracks. Also, this only occurs when a song is placed to the right of the audio track. Before placing a new audio track there are no problems. Afterwards there is and even if I delete the new track the old track still has problems.