Cloudflare source public ip address

Hello, I am using Cloudflare to protect my website running in an ec2 instance, I have configurate a security group on AWS to allow just the traffic from Cloudflare public ip address according of the site: https://www.cloudflare.com/ips/ but when I apply the security group I can’t access to my website, I have checked the logs and I am seeing public ip addresses that are not part of the list. For instance: 77.247.110.33 or 185.176.27.166.

Where can I find all cloudflare public ip address to configure on my security group?

Regards,
Arsenio

Neither of these addresses is a Cloudflare address. You are either rewriting IP addresses and simply have client addresses here or get direct requests, bypassing Cloudflare, which would suggest your security rules would not fully have effect.