My Aspiration Challenge :)

I am so upset. Once again my savegame broke. My aspiration game won't load at all. I am back to using my saved house and saved Nadia and Akira and just carrying on from there. Unfortuanatly I am losing all of Nadia and Akira's kids and grandkids. As I am concentrating on the aspiration part I will just carry on, but I am pretty upset that this is happening again, I wonder if its possible to have an actual safegame that does not corrupt while doing all the aspirations. I am not using cheats or anything so not sure why it happened again. I thought it was the bust the dust update last time, but this time there were no updates :(