I don't know what has caused this situation. Yesterday, I could dictate on Facebook and in text messages. Today, I hear a sound when I enter an edit field but a two finger double tap does nothing. In fact, when in message composition, I don't even see the keyboard. I haven't done anything to change this procedure. Installing my new Focus 40 braille display and pairing it with Bluetooth is the only thing I have done iOS related. I did download new app store updates but that should not have changed anything. I have the latest iOS 13 update installed. Any suggestions?