Since you use MCCC, you should also turn on its autosave feature if you don't have it on. So, the only advice I can give you is to save often while you play so you don't lose too much progress. I have my doubts about that as I have had it happen in a mod and CC free test game a couple of times as well as in my main save where I do use mods and CC. It has been attributed in a number of places around the Sims universe to mods and several are getting the blame. I've also had it happen with other mods as well. While it happened for you trying to open an MCCC panel, it happens in my game with other panels like the cooking menu on the fridge and the change outfit option panel on a sim. The only way to clear it is quit and restart the game. The game is simply hung at that point, and you can wait forever, and it will not clear and the game resume. that happens, there is nothing you can do other than force quit.Information, Guides and Announcements for the EA app.