Hello, I completed the first section building the Bulls Eye app and it went quite well. However, when trying the various iphone versions, which all work well with the layout as done in the book, the iphone X does not. It leaves one end of the screen white and does not extend. I tried a few different things only the mess up the other iphone version layouts. Did I miss something? Or is there something different about the iphone X that needs to be addressed?