I've been adding subtitles and I'm not sure if it's related to this issue, but I was just watching the preview for my video and somehow all of the video clips have been pushed back, almost like I used the Slip tool on my entire timeline on only the video. I've spent 4+ hours on this edit and if I have to start over I'll probably cry. Does anyone know what caused this or how I might be able to undo it?
have you tried opening earlier autosaves until you find the sequence without the issue? Also, can't you just select that video track and slide it back in to synch? and do you realize there's an option in timeline preferences to "display out of synch indicators for unlinked clips?" If you're working with synch sound, it makes moving clips back in to synch very easy.
Some more information, I believe this error occured while I was adding subtitles. I was experiencing a bug where the preview would freeze and moving my cursor would advance through the timeline. I think I realize now that the bug was dragging the video clips.