Wandering audio track
Did I miss the memo on how to anchor the audio track? I'm building a slide show with music, adjusting audio markers to the beat. After I've worked on the middle or end of the piece, I find the beginning of the track has shifted one or more frames, say Frame 1 to Frame 2, which means I have to start timing all over. On the other hand, I'm working near the beginning of the track, and find that the rear audio track bar has shifted to the left, blanking out the end of the tune.
Surely there must be a way to keep the audio track fixed in place.