Sound going out of sync

Hi Guys,

I have an animation and sound running along the timeline. And step forward and step back buttons. The sound is set to stream to keep the animation and sound in sync with each other. This works fine when played from the start all the way to the end. But if the step forward or step back button is pressed, the animation will fall around 5-10 fames out of sync with the sound. And will remain like this until the end.

How can this be fixed so the sound and aniamtion won’t fall out of sync.

Thanks, Wayne