LacNIC rDNS - "Some of the name servers are not authoritative"

Hello all,

Been fighting to setup reverse DNS with LacNIC for the past couple days - no issues with ARIN... Every time I go and try to add the block a /22 to LacNIC's rDNS setup tool I punch in the name server with authority (the SOA) and it comes back with "Some of the name servers are not authoritative"

Any ideas here, any one have experience with LacNIC reverse DNS and got any tips? Like I say I set up our prefixes with ARIN that use the same DNS servers without and issue.

Thanks for your time and help!