The way you fix that is build a romantic relationship with the sim that your sim is supposedly engaged to. Hopefully, you'll get the option to ask to be girlfriend/boyfriend. Then propose. After that, you have a choice to break them up. Use the friendly social to ask to be just friends or the mean social to breakup. Then the engaged status should clear itself.
Hope this helps
Someone please tell me they were able to get this resolved?!? I did the exact same thing, convince to leave spouse, but can’t propose to anyone new , or get back together with my original fiancé…. I’ve been doing so much for hours trying to get it figured out and can’t !!!!!!
