What is your operating system?
What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit?
Can you repeat the problem? If so, what are the steps?
Not really applicable.
I was editing in Shotcut earlier this afternoon. I briefly had a web browser open while doing so. Shotcut threw up an alert about running out of memory, which isn’t entirely unusual if I happen to have a web browser open while using it. I went to save and close Shotcut, as I knew I needed to use the browser for a bit, but Shotcut kept throwing up multiple instances of the alert, slowing my machine down entirely so that I couldn’t respond to it before it threw up another. I eventually managed to get through them, after a short period of Shotcut being flagged “not responding” by Windows, saved my project and closed Shotcut. Or it crashed as I tried to close it, I’m not sure. Either way, it relaunched itself a minute or so later without me telling it to. I closed Shotcut again, got on with what I needed to do in Firefox.
Went back to Shotcut a bit later, reopened my project and the entire timeline is now empty. The playlist is still full of all the clips that have been added the project, but all the actual editing work is completely gone, even the tracks, just a total void. It will let me create new tracks and add material in, so it’s not that it’s unable to load the timeline element of the program or anything, it’s just decided to wipe my work. There’s no evidence that this is a recovery file (there’s also no file in the autosave folder) or that it’s had to deal with any corruption, it’s seemingly an entirely valid save file, just bereft of what was saved in it.