Possibly lost .mlt content

[Elusien]

Why not post your MLT file here on the forum, to see if anyone can help?

Also, to see my backup strategy, especially for large projects, see here:

Entire project wiped after accidentally hitting CTRL+W and CTRL+S at the same time

To cut down on the amount of work needed to create a project that gets corrupted in some way, save your project regularly (e.g. every hour) to a new project name e.g. File->Save As myproject_2.mlt Also, consider backing up your filesystem files incrementally on a regular (say once a day) basis. I have a Windows system and use an excellent (free) backup solution called SyncBackFree. See this very clear tutorial on how to use it: [SyncBack - Backup Software For Windows]