It could happen for a couple of reasons. But probably the main one would be when the save file is being written, sometimes a block in the file may not be written correctly. Thus when you try to open that save again, you won't be able to. This will probably be more common in older hard drives.

But regardless, you should have three file rolling autosave enabled, then you will always have a backup.
 
So is there anything i can do to prevent it from happening?
Not really. How old is your computer/hard drive? But enabling 3 file rolling autosave, and also make it a habit to save manually in more than one file will reduce the chance of you losing your game drastically.

Personally, I have never had a corrupted save.
 
I have never had a corrupt save, but used to find that my game froze often during matches. I sarted a rolloing 3 save system and save before virtually every single match, just incase. I have not lost a save since
 
Top