SSO client application does not require user to log in.

Hello,
I have an SSO client application configured in RISE and it is working successfully, retrieving correctly a refresh-token for the user that was previously logged in iMIS cloud.
However, after the user is logged out, I make a call again to SSO client application in order to get the iMIS login page.

Rather than that, I am getting (Image 1) error page for a seconds and after that it redirects to the “Login redirect Url” with a refresh token for a GUET user.

I have picked up the option “Content requires user to log in” to expect the login page comes up for an anonymous user, but looks like it does not work. (see Image 2)

Do you know if this is an SSO client application BUG?
Or do I missed some configuration?

Any help would be appreciate.

Regards
Roberto.