I have an iPhone 5 running iOS 9.0. I had this strange occurrence. While using messaging a grey window suddenly appeared blocking the message-input box (or whatever it's called) at the bottom of the screen. This window is the same size as the message-input box and placed centered on the input box so that it's blocked from view. The grey window has rounded corners and what appears to be a time field at the right in small white numerals: "0:00". To the left of this window is a small camera icon and to the right of it is a microphone icon. I can still type and send messages but, because of this grey window, I can't see them until after I've sent them. About this I have three obvious questions: (1) What is it? (2) What caused it to appear? and (most important) (3) How do I get rid of it? Also, is this a known bug?