[A] grey icon on the right - means 'Not translated page'. In your screenshot all English children are not translated (except one). If you click on any of them you will get "The page does not exist in the current culture.".
Secondly when you create a new language version of the page - it offers you copy the content from an existing language, thus you might get an English page with French content and vice versa. Go to General Tab > Culture to check the actual culture.