One shot in the timeline jump cuts within the shot. I edited a continuous take. Everything worked fine until a few days ago. Now when I play the timeline, halfway through the shot, the picture jumps back to the beginning of the shot and plays through to the end. Audio is not affected.
The shot plays properly in the browser. I've relinked the shot to the original clip and a separate back-up. I've made a new Quicktime from the browser. When I lay that in the jump still occurs.
This is the only place in my edit that the problem appears.
Does anyone have any ideas for me?