Visual Inteligence on IOS

With visual inteligence, on the iPhone, after taking a picture, and clicking the ask button, and swiping to the text description, that description is spoken, but the dialog seems to time out, and closes before I can ask any questions. Sometimes it times out before the entire description has been spoken. How to keep that on screen, so you can ask questions? I have even opened the edit box, and was typing in a follow-up question when it just timed out and closed. I must be missing something.