It's the "time travel" bug (as I'm calling it) that I can't seem to find any information on. When you enter cas or use a save & exit option the game will time travel back to the past. I've noticed it from time to time when leaving the lot to visit a different lot as well as using CAS and doing a save & exit. Here's a great example:
Start a NEW GAME on normal lifespan, which brings you to Sunday morning at 8am (like every game does)
Play through a day or two, or even a week if you'd like, then either enter CAS or use Save & Exit.
Return to the game, either by exiting CAS or loading the new game and you will see that the day and time has changed.
For me, I often times end up back on Sunday, but at midnight instead of 8am. Fun thing about this GAME BREAKING BUG (please pay attention to this EA) is that if you have more than 1 sim in the household you will see that all other sims have been restored back to their previous status. Example: Skills, Relationships, Aging, Job Performance, and others will be reset back to where they were originally. There will, however, be 1 of the sims who will keep everything they did. This is a way to gain tons of skills on a sim without the time advancing. The downside to this is that their age gains stay as well, so they will eventually age and die.
At any rate, this is probably what is happening in your game. Pay attention to the day/time when you travel, edit CAS or save & exit. I am attempting to get a refund on this broken game, but I assume EA will ban me from their forums again soon.
EDIT: I failed to mention that you will also lose any building changes you made. Pretty much ANYTHING and EVERYTHING you did is reset and you have to play all that time again. The game is BROKEN!
