Please use this thread going forward: Save Game Corruption (Disappearing Lots/Error 800 or 801) | EA Forums - 5037272
I think that perhaps save file size could be one contributor. However, like Down-in-Simsland, my save files broke anywhere from 85-90mb. It really is bad code-base and poor management/QA of the DLCs. Too many, too soon, too complex, and too poorly tested DLCs rolled out despite breaking the game.
At this point, someone from EA has to come out and say "Sorry guys, there's been a huge bug in the game. We have solved the problem, however, we will need you to start a new game." Then explain why it was bugged.
@MrJamesNguyenI'm afraid there will be a part only about the new game. With the note that it's only our own fault that we built many lots and have many families.
