Please note that this is a machine translation.
For players who have the "Lovestruck" or "My Wedding Stories" packs and have achieved polygamy, this bug ruins everything.
I created a save file. Of course, I used MODs/MCCC. I just removed the restrictions. It's also a problem that the family tree update didn't include appropriate fixes for the "Lovestruck" relationships.
Sims with "Sisters" in their profile relationships often have "Spouse" removed from their relationships. Sims without "Sisters" also have "Spouse" removed from their relationships.
Due to the deletion and modification of relationships, the loading time to the player Sim control screen has increased.
It's also a problem that once a family tree is fabricated, there's no way to fix it. The family tree from objects and the family tree from the player UI should be separate.
This is a video of a certain save file. It's in Japanese.