在重新加载场景之前，为什么不保存我的布尔用户默认值？

I have a user defaults for the key sound. I have it switch between the two when the sound button is clicked. Why isn't the value saving until after I leave the scene? If I click on my settings button it will shah up as the wrong value but if I go to another scene and come back it will show the correct value. I have a user defaults for the key sound. I hav