If you create a DNS entry in our DNS editor that includes the domain name in the first level of a domain, then all entries in that domain may be shown duplicated in the editor.
Choose a domain where Enlighten Domains manage the DNS zone (provide the nameservers), and open the DNS editor.
Example domain 'test.nz'
Create any record, where you include the TLD such as "mytext.test.nz" at the end
Refresh the DNS editor.
The record created is actually "mytext.test.nz.test.nz" because the TLD is inferred. The domain editor then starts incorrectly showing all first level records twice.
In this case simply editing 'mytext.test.nz' to 'mytext' fixes the issue.
Remember you can use the "@" for the apex records.