Lovestruck Pack is corrupting my file

Hello team,

I have a game where I have been solely focused on a family, where when a teen starts to date another, I put the other teen inside my household so they can grow up together and stay in love easier. However, I have noticed since they aged up to young adults they can no longer whoohoo. Everytime I try to do so, they t-pose and cannot do the action. I tried to find answers online and they advised about removing mods and that did not change anything. I also cleared all the cache and tried to do what someone on reddit said because they experienced the same thing 4 months ago and it was only fixed by breaking up and having to start the relationship again. However, this does not work and when my couple tries to do so they t-pose and reset. Can someone please look into this?

Thank you!