Why can't my .wlmp file open having just closed it after hours of work yesterday?
All files present on hard drive, older movies (even some that contain audio tracks no longer on this PC) can be opened.

I've gone back to continue working on this movie and I get "Sorry MM can't open this project file. The file might be incompatible with MM or corrupted. Please select another project file."

Um, no, I won't be selecting another project file thanks.

This error makes no sense.

Please respond asap.

Thank you.