cache problem saml mfa with okta

HI,

I have problems with the credential cache of the mfa vpn with okta, in the sense that the first login with mfa works correctly but if I disconnect and try to reconnect the forticlient dosentt ask me for the credentials or the mfa and it connects without asking me anything, I I was wondering if on the okta/fortigate side I can configure something that forces forticlient to request the mfa login every time without having to delete the forticlient cache file.

I use the free forticlient version.

Thanks in advance.

Giuseppe