If you aren't aware that DNS propagation is actually about waiting for cached DNS records to expire then maybe you shouldn't be the one debugging DNS issues in

If you aren't aware that DNS propagation is actually about waiting for cached DNS records to expire then maybe you shouldn't be the one debugging DNS issues in the first place? I think propagation it's highly descriptive. You make a change and then you wait for various DNS servers to acknowledge that change (once cached records expire).