I did that, and still not working. After setting A records, re-entering custom domain and waiting for few minutes, I get this message in Settings of GH-pages `D

I did that, and still not working. After setting A records, re-entering custom domain and waiting for few minutes, I get this message in Settings of GH-pages `Domain's DNS record could not be retrieved`. Bummer. Maybe I was to eager to remove Cloudflare from the equation.