Zone Editor can display and edit a local DNS zone even when public DNS is being answered somewhere else.
If a record changed in cPanel has no public effect:
- Look up the domain's authoritative nameservers.
- Determine whether those nameservers belong to the cPanel hosting environment or a third-party DNS provider.
- If they are third-party nameservers, make the public DNS change at that provider.
This is especially common when using CDN/proxy DNS services or when a domain was moved but its nameserver delegation was never changed.