Hi guys, can I ask a little advice here please?

I have imported a video track into Movie Studio Platinum 9, which has embedded audio. No problems there.

I have laid down a second "narration" track on certain parts of the timeline, which play back perfectly and they play in the correct place when played back in the timeline.

My problem is when I render a final movie, the narration track appears to be way out of synch with the video, and it plays all the way through without stopping at the split points I have set.

I am fairly new to this package, am I doing something wrong here? Should I be embedding a continuous track or can I insert narration segments where I need them at split points?

Any help very welcome. Many thanks in advance.

edit: If it helps any, I just noticed that the video content in the final render AND in the preview render seems to be laggy and a tad slower than the timeline playback, which may explain the positional error on the narration track.

edit: yep, the audio cannot sync to the video because the video is lagging, it can't get a proper sync point so it just plays straight through.