Re: Activation Code after New Member Registration
I dig some digging into this problem since I was having it as well. The user’s account is activated successfully when they click the email. The problem occurs when you login from the activation successful page (activate.php). If the user opens another browser and goes to the site homepage to login, there will be no problem. For me, this was happening because the plugin that I was using to handle logins was including a hidden redirect to the source page in the form. So after the user logged in, it was redirecting to activate.php which by default asks you to activate, even if you are logged in.
So check the html for the form that you use to login and make sure there is no redirect to the source page.