Issues With Sims

Hi everyone I hope you’re all doing well. So I was writing because I just recently got back into playing my sims. And I guess there was some type of update. So after spending weeks on downloading a lot of my mods. Im noticing that I can’t get one of my sims in the household to interact with the other one? Is anyone else experiencing issues with this? Or does anyone possibly have any real solutions as to how to fix it? Thanks so much in advance .