I've run into a possibly gamebreaking glitch, and wonder what I may do in order to possibly fix it. My Gen 2 Heir traveled to China, and when he returned the entire user interface was missing, as if there were no sims in the household at all, and I can't control him either. I've run into this bug before, and found no way to fix it then, and even worse, that time it seemed to spread to all saves I had of that particular family.
Is there any known way, permitted within the rules of the challenge to fix this?