Hi ….
The same happened to me in one of my various projects.
Just in one computer, just one project.
The only valid one I could open was from yesterday at 10:14, so a full day of work was lost.
We use FCP 5.1.4, QT 7.1.6…
Al other projects working fine.
Checked with another FCP expert but he never experienced this before …
It seems this could happen. Not frequent at all, but is there.
The editor says nothing else was changed in the computer, no hungs, no application errors ….
So the editor started to re-cut the film