At login page not showing button "Log in with SAML Single Sign On"

At login page not showing button "Log in with SAML Single Sign On"

Hi.
I'm configured SAML SSO and use Default Login page. But  can't see button "Log in with SAML Single Sign On".
Here's Preview in Settings:
Preview in the Settings

Here's how it looks in browsers (in incognito with cleared cache - too)
Real view


    • Topic Participants

    • alsh