I am developing a SSO using PKCE, this is our first devolop of this kind, we are login without problem, when the user logout from the system evething runs great, but when the user tries to login again using his/her credentials, the system replies: Your login was unsuccessful. Please try again. In both logins the user use the same credentials set, but in the second login the login fails. Can you advise me about this weird behaviour?
Thanks in advance