About Forticlient SSL VPN with SSO Enabled

Hi,

I have Forticlient 6.4.3 with sso for vpn tunnel enabled,

My saml works againts azure IDP and in azure i enabled duo mfa.

From windows client it works perfect when i click on saml login in forticlient appears microsoft popup window i put my cred. its take me to duo mfa, But from mac book have a issue, The issue is when i click on saml login in forticlient appears microsoft popup window i put my cred. after i add cred. its stack on white blank window.

Can anyone advice what i can do ?