So there is a logical issue with projects, and saving, and the backup file. When you save a file, both the backup, and the project are saved to. Seems very normal, but I've been having issues with a buggy GUI, and the compute stick I'm using is within spec of minimum system requirements, but often, it crashes. One of the crashes, is during saving. And when this happens... it overwrites my project with the null character, as WELL as the backup file at the same time, so when I recover and open my broken, it's broken, when I go to rename the backup and use it, it is the same broken file.
It seems beneficial in scenarios like this that the backup file is not saved until the master file is saved with a successful write.
I've lost a few files now to this issue with Ctrl + Save and TG just Crashing to Desktop without error. Forcing me to restart on ideas, loosing two really good ones that I can't recreate.