Sims marriage keeps resetting back to partners after using cas
So I’m playing sims 4 and my sims have gotten married. I completed the whole ceremony and the wedding certificate is up on the wall. A few in game days later I changed an outfit in cas and when I exited to live mode their relationship had been set to partners. Not even fiancés but partners. I had them elope to be set back to married, and the next day changed a career outfit and they’d been set back to partners again. They still have the just married buff active but they’re not even married anymore. I’ve tried exiting the game and reloading and it keeps doing this, and I even tried repairing the game and it didn’t help at all. I don’t use any mods or custom content. Is there any way to fix this? Because I change and redo outfits quite often in cas and I’m not willing to make my sims elope every single time.