I have amember 4 installed on my main domain, which is my production site. This is working fine. I have a sandbox.example.com subdomain that I use for testing. I copied the amember files from the production domain to the subdomain. I have changed the amember root url to reflect the subdomain and I changed the url that loads after login to the subdomain. When I log into the subdomain it forwards to the main domain. I have SSL setup on the main domain. What am I missing? I want everything that happens on the subdomain to stay there.