I'm working on Unity, and I haven't been able to get anywhere, because when I start a project, around an hour or so into my work, my prefabs disappear while I still have it open. This has happened three times. I've remade everything I was working on three times, and while granted, that isn't a lot, it's still pretty irritating and inconvenient. Is there something I can do to fix this, or should I just bail.