Sex party only works properly outside the household.

[Gaunameister]

Outside the hosuehold the sex party works fine. But when the party is at the house NPCs only whant sex with Sims who live at the household. No autonomous sex between NPCs, only directed by the player. NPCs just look and eventualy some masturbate, but they don't engage in sex activity with others NPCs. Why? Becouse in others places NPCs are doing it fine.

I got the last version and the prostitution mode.