Netflix app freezes on black screen

@user_86vpek Thank you so much for letting us know you need help with Netflix not launching for you. When this happens to me, I just say restart Netflix into my voice remote to force the application to restart. You can also clear your X1 boxes temporary file to log the application out causing it to update as well and having you log back in when launched again. To clear your temporary files on your X1 box: 

1. Press the Xfinity button (X1 or Flex) or Home button (Flex) on your remote.
2. Select the gear icon > Press OK to go to Settings.
3. Select Privacy > Press OK.
4. Select Clear Cookies and Local Storage Data > Press OK.
5. Press OK once more when the confirmation window appears.

If you are not using one of our X1 or Flex boxes you should be able to clear the device history to do the same thing. Let me know if you still need help.