When viewing IPAM DHCP servers, scopes, groups or IP addresses from an additional website, certain items may not display. This only applies to users who have created or modified any custom properties. The reason for this is that IPAM does not synchronize IPAM Custom Fields from the Main Poller to the Additional Web server.
When a custom property is created or modified you must copy over the IPAM SWIS schema from the main Orion server into each additional web server.
The default locations for the files that need to be copied over is:
"c:\Program Files (x86)\SolarWinds\Orion\Information Service\3.0\Schemas\IPAM.Attributes.xml"
"c:\Program Files (x86)\SolarWinds\Orion\IPAM-OrionReportWriter.Schema"