It happened to me too and I havent been able to play. I got a storyline worked up for my sims and have created a big family that I wanted to become royalty. What triggers this glitch for me is definitively the secret child glitch where the affair partner turns into my main male sims half sibling through his mother. Its not the mods fault because I had tried deleting every mod and see if I can change the sim relationship with cas.fulleditmode and it wont let it change. Not even other relationships. Was going crazy until I came across this thread
