I added ssl to an existing multisite now there's problems

I have a multisite set up as sub-domains. (Site1/mysite.com, site2/mysite.com, etc.) I've been using domain mapping to map each client's domain to the sub-domain and I recently installed LetsEncrypt successfully on each mapped domain. Then I added a wildcard SSL to the main domain with the idea that I would create more sub-domains and my clients could preview and test with https before I mapped their live domain to it. Now I can create more https subdomains and the URL resolves but I cannot access the dashboard of any of them. I can access the login screen and enter my credentials but nothing happens when I enter them. Any idea what might be wrong here?