Hi Joe,
There’s hardly any difference between the original project file (the damaged one), and the older saved version. Well, difference in terms of KB, not in terms of my creative time 😉 So I am hoping that the damaged file is still salvageable in some way. If the file’s contents were totally wiped, surely this would be reflected in a massive drop in file size?
I think this happened when I shut down my laptop in a hurry on the train, without either saving, or shutting down the application first. Maybe it was in the middle of an auto-save?
It’s distressing; this was a non-professional project, so no harm done in my case. It sounds like your situation is much more critical…
Let’s hope for a solution 🙂