So, one of my .mlt files, which happened to be the most important one that I’ve invested the most time into, has disappeared from the file list on the Shotcut home screen.
It was there, but when I clicked on it it just went away and nothing opened.
I navigated to the folder on my computer where all of the mlt files are saved and it is there, but is 0 bytes in size and, obviously, does nothing when I click on it.
I followed suggested guidelines that worked for at least one other person about 17 days ago and looked in the autosave, but, oddly, there were no autosaves from the past two weeks there. Only old projects. It is as if all traces of my project have vanished. 
I had just spent some time editing a different mlt file, saved it, closed it, then clicked on the file in question when it vanished.
All other mlt files are intact.
Any ideas would be very much appreciated.
I love Shotcut. Other than it crashing occasionally (I learned to save quite often), it is massively powerful and effective video editing program for free.
I’m all about starting over my 15 hours of editing, but only if i know of a way to prevent this from happening again… or better yet, how to recover the file.
Regardless, great job on this project, Shotcut man (Sorry, I dont know your name)! It really is amazing, otherwise.
Running windows 7 and latest version of shotcut (downloaded and installed about a month ago).