Messages not appearing

Try doing a hard reset by holding the power button on the front of the console until it turns off then unplug the power brick from the console and the outlet for 5 minutes then plug everything back in and power back on.

If that doesn't work then you could try a console reset as a last resort. go to settings, all settings, console and update info then select reset console. Choose to keep everything and your console will restart and go through a small set up again and will
have you sign in. After your back on the home screen try the messages again.

Are you able to view them on the Xbox app on Windows 10 or on Xbox.com? Give that a try and see if it works. Also, are you in the preview program? If you are and this doesn't work try posting in the forums there and official support will investigate the
issue and offer more troubleshooting tips

Im having an almost same issue so when i go to my messages and all that i click to type a response but it dosent pop up the textbox plz explain how to fix this ....also if i hold down the button to pull up the screen to restart or turn off the controller
or shut down it dosent pop up the screen

I had this problem in the past but it somehow just fixed itself, please update if you do find a temporary or permanent solution.

Your Xbox console may benefit from a power cycle.

How to perform a power cycle:

1. Turn off your console by holding the Xbox button on the front of the console for approximately 10 seconds. The console will turn off.

1. Turn your console back on by pressing the Xbox button on the console or the Xbox
   button on your controller.
   
   Note If you don't see the green boot-up animation when the console restarts, repeat these steps. Make sure that you hold the power button until the console completely shuts down.