Thanks for letting me know, @bperd!
Are there any plugins installed that manage or modify user sessions, such as session keep-alive, user activity tracking, or security extensions? These can sometimes interfere with the “Go back to admin” functionality.
Also, can you check if you’ve set any value for the “Logout Redirect URL” parameter in the plugin settings? This could affect how the redirection behaves when trying to return to the WordPress admin as an administrator.
Let us know so we can help troubleshoot further.
Regards,
Yiannis