Vegas 6 renders out of sync

[Michael Morone]

I just wanted to add that I’ve had this exact same problem.

I took a piece of music, and to fit the video better, I cut up the piece of music, and repeated portions, cut pieces out etc. After spending a lot of time making each beat go along with the video, it works perfectly, and the music sounds like it was always that way. Then a few minutes later, the music is off, and all the work I just did is for naught. It was extremely frustrating. What happened was what you just described: each clip of music was a few frames off. (I had done nothing to change it) What I did to try and make my life easier was pre-render the music, and then edit it. Doing this every once and a while helps to edit the sound that you know is going to be the output from the project.

This is a really big problem for Vegas, and I really hope they fix it for future versions.