Preview Missing Application Name

I am using Android Studio 3.1.4, and the following is what is happening when I preview the layout:

  • question_text: displays the question normally (Canberra is the capital of Australia.)
  • true_button: displays normally (True)
  • false_button: displays normally (False)
  • app_name: does not display in preview (however, it displays fine in the emulator)

Is this the correct behavior that should be expected? See the image below:

Hello @frandobs, please refer this thread for similar prob and solution