Hi, @Justin, and welcome to our Netlify community site.
Are you using Netlify DNS? If so, Netlify DNS doesn’t support DNSSEC at this time. The only options in this case are to stop using Netlify DNS or to disable the DNSSEC configuration for this domain.
If you are not using Netlify DNS, then it should work but we cannot assist with troubleshooting the DNSSEC issue because we aren’t handling the DNS service. However, once that issue is resolved the SSL certificate for the domain should provision at Netlify.
If there are other questions or if I have misunderstood the issue, please reply anytime.