I tried setting up a domain and most of the time I get “Check DNS Configuration” error. One workaround I found is deleting entire DNS Zone and adding it back.
But this causes some downtime and this is not something I can do everytime.
This issue already happened to me on couple of sub domains already mostly with Domain Type: “NETLIFY” and “NETLIFYv6”. Also I cannot delete these sub domain since those are managed by Netlify. It will be better if we get manual option to edit “NETLIFY” and “NETLIFYv6” records.