Why did they take out the hybrids in TS4? I had a whole entire world with hybrid

@1003811392321 I imagine there were just too many glitches. I've read about a lot of bugs with hybrid sims. This is the easiest way to deal with it. There are what... 7 different occults? That ends up being over a half million different combinations I think... Lots of potential for bugs there. It's very easy to consider, 544,320 different combinations to debug or just turn off hybrids...