This is still happening in 2018... Minecraft for ps3. I only just had it happen since playing multi-player. Never on a save that was only ever single player. I only just got a second working controller a few weeks ago and since then I've had it happen 4 times. It happens when I'm playing in the save by myself and with split screen. It usually happens when I exit without saving after dying. Would be really nice to get to play with my nieces again without every world we make being corrupted.