I got a PS4 a few weeks ago and brought over my world, Mt Tower, from the PS3. I have been building the world with my girlfriend for a few years. I expanded my world size on PS4 to large & we have way more to explore, which is awesome after playing in the world so much. I have been flying in creative holding maps to fill in the entire world on the maps before building more & exploring caves. I have a 5x5 map wall at my main base and want it filled in before I move to exploring underground & building. I have had the save get corrupted twice now, both times being the first shutdown after filling in the entire 25 maps on the wall. I understand that corrupt files happen & I am going to start backing up to a USB drive regularly, just wondering if there is any pattern to the corruption that I can try to avoid. I never had this happen on PS3. I have to keep re-downloading my PS3 save, so at least my world is not altogether gone but once I finish mapping & start exploring and building it will get very annoying. Just wondering if people have had the same or similar problems.
Edit - I read about downloading a PS Plus save through PSN & will try later after work