All of my Sim lots in one neighborhood of Willow Creek are gone?!

So, the original two families I was playing are simply gone.  They were in the Daisy Hovel neighborhood in Willow Creek.  They are still in my gallery as unplayed, but I had hours of play time and upgrades to their houses, children, and so one...all gone.  There wasn't an error or any kind of warning, I just loaded up the map to pick a house to play and realized their entire section of the neighborhood has reset.   I am not sure if there is any way to recover the progress...

I have one other family left that I was actively playing and a new family I downloaded from the community, both the household and the lot.  I am not sure if downloading from the community triggered the problem or not.

I've looked through the bug list but did not see this issue and am not sure if I missed it or if anyone else has had this happen?  I don't have any mods or hacks, I have the deluxe DL version of the game from Origin.

Ugh, this is such a let down.  I am not sure if I want to continue playing if I will lose all my progress without warning. D: