Domain Mapping update, now can't map Addon domains

Had a site mapped for an Addon domain, updated Domain Mapping, site stopped resolving

deleted the site, created new site and attempted to Domain Map, now getting the Domain Name Unable to access error (this is a domain that previously mapped)

added another domain to cpanel addon domains - it will not map (nameservers same)

new and old parked domain site will Map

problem with Addon domains

please advise if you are duplicating this in test environment and/or anyone else seeing this and/or advice on how to resolve

regards,