server_item xml not importing properly

I'm still testing the software and I'm creating customized additions to the audit script (linux) to search out alternate web servers and configurations beyond just apache.

Currently working on nginx, but I'm finding that even though the code generates an xml file listing two server_item entries (two different websites), it's only importing one into the database when the xml is submitted.

I cannot determine if there's something that's required/mandatory in the server_item configs that is not clear from the database schema. At first I thought that it perhaps only allowed one website per port (i.e. - that if a second website was listed on port 80, it would just overwrite the first), but I have several other servers that are showing multiple sites with the same port.

Below is the snippet that is produced by the audit:

<item>
  <type>website</type>
  <parent_name>NGINX</parent_name>
  <name>ipm</name>
  <description></description>
  <id_internal>ipm</id_internal>
  <ip></ip>
  <hostname>[cannot share this here]</hostname>
  <port>80</port>
  <status></status>
  <instance></instance>
  <path>/ipm/bundle/public</path>
</item>
<item>
  <type>website</type>
  <parent_name>NGINX</parent_name>
  <name>nginx</name>
  <description></description>
  <id_internal>nginx</id_internal>
  <ip></ip>
  <hostname>localhost</hostname>
  <port>80</port>
  <status></status>
  <instance></instance>
  <path>/usr/share/nginx/html</path>
</item>

Only the second item is showing up in the database after this is imported. Any suggestions/ideas?