title: Azure AD OpenID login not showing errors on fail
body: <p>I have been updating a system that has been in place for sometime and finding some clients have issues with login on mobile devices.</p>
  
  <p>I have a test system in place and setup Application in Azure AD and noticed during testing if I login with incorrect credentials, login.microsoftonline.com will show:</p>
  
  <blockquote>
    <p>Sorry, but we’re having trouble signing you in.
    AADSTS50020: User account...</p>
  </blockquote>
  
  <p>When login to the clients live systems I don't see this error and just get returned to the home page of the application. </p>
  
  <p>The only difference is the client apps are configured with credentials for there Azure AD instance and I cannot access them. These where also built on the legacy App Registrations but that shouldn't be issue (ha).  The server side is the same implementation.  </p>
  
  <p>Why am I not seeing the AADSTS errors in productions sites?</p>