Since I usually use the daily compiled version of blender,
Will often crash, so I developed a habit of saving at any time.
However, if you suddenly lose power while saving, the file will be broken and cannot be recovered.
I have encountered this situation before.
I only set up to save two versions, both versions are broken, and I was very depressed at the time.
Fortunately, there is a file that is not very far away from the auto-save file.
The saved function does not know if it can be optimized to avoid damage to the original file when the power is off.
I don’t really like auto-save. When the scene is very large, saving it on a mechanical hard drive will make the computer slow.
I think Blender especially needs a function like zbrush and maya that can be automatically saved in the event of a crash, which can largely avoid the user’s loss and reduce the risk of serious bugs.