Use with WordPress Toolkit

Hello,
I manage multiple sites and use the WordPress ToolKit to login to my sites. It has an option to change the login URL from wp-login.php. I’ve tried multiple times to get that feature to work with your plugin but it just keeps redirecting to the WP login page without logging me in. Disabling your plugin and putting the login page setting back to wp-login.php does fix the issue. Do you have any suggestions on getting that feature working?
Thanks,
Paul