 <p>This is a work around more than a fix but if you'd rather be coding than bug hunting it might be worth a go! (remember to log out of SS before doing this fix)</p> <p>In your mysite/_config.php file change </p> <pre><code>Director::set_environment_type("dev"); </code></pre> <p>to</p> <pre><code>if(!isset($_GET['isDev'])) Director::set_environment_type("dev"); else Director::set_environment_type("live"); </code></pre> <p>Then you can develop the website in dev mode normally and to use the admin in live mode and avoid the bug you just go to: <strong>http://{your_domain}/admin?isDev=0</strong></p> <p>N.B. might find a proper answer when pastebin.com isn't overloaded and I can see your responses!</p>