I have the iPhone 6 Plus. I wanted to write a review in the app store on an app I bought. After I click on the stars to rate it then tap to start writing, all I get is an empty white space and no words show up. I did find an existing review I wrote along time ago. I can backspace and change my review but once again I cannot see any words to backspace. I can tell it's erasing it though and I can type my edited review but I'm guessing at it since I cannot see any words and I can click send and then read my edited version but I cannot type a new review.