title: iPhoneX Error - This app was not installed from the App Store and must be reinstalled manually
body: <p>My application is signed with <strong>Enterprise distribution certificate</strong>. When I try to install my app on iPhone X it installs successfully but when I try to open, it gives me an error <code>"This app was not installed from the App Store and must be reinstalled manually"</code></p>
  
  <p>Please note that app is opening and working on all other devices. This issue occurs only some specific iPhone X, not on every iPhone X.</p>
  
  <p>Can someone please tell me why I am facing this error.</p>
  
  <p>Screenshot is attached
  <a href="https://i.stack.imgur.com/CL9GK.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CL9GK.jpg" alt="enter image description here"></a></p>