Hey enixmomo,
Go into your project settings and be sure the ‘Mobile HDR’ is checked as well as all of your ‘Default Post Processing’ settings within the rendering section.
Default Post Process Settings
After checking here, go into the Post Process Volume of your scene and be sure it is set to ‘Unbound’.
Would you mind providing me a screenshot of the Post Process Volume in your scene along with the details in which you are having troubles viewing?
Thank you,