Add node to NPM 10.2.1 using Orion SDK 1.4 works, but interface pollers don't get added

I've successfully added a node with an interface using SDK, but the interface pollers don't appear in the database so the displays aren't correct;

Here is the PowerShell code used to add the interface and pollers to the node;

The interface shows up in the Interfaces table.  Here is my Powershell code for adding the interface and pollers;

# add interface and pollers for Ethernet0
$nodeId = "2395"
$newIfaceProps = @{
NodeID=$nodeId;
InterfaceName="Ethernet0";
InterfaceIndex=1;
ObjectSubType="SNMP";
Status=1;
}
$newIfaceUri = New-SwisObject $swis –EntityType "Orion.NPM.Interfaces" –Properties $newIfaceProps
$ifaceProps = Get-SwisObject $swis -Uri $newIfaceUri
# register specific pollers for Ethernet0
#
# Interface Traffic Statistics
$poller = @{
PollerType="I.StatisticsTraffic.SNMP.Universal";
NetObject="I:"+$ifaceProps["InterfaceID"]
}
$pollerUri = New-SwisObject $swis -EntityType "Orion.Pollers" -Properties $poller
#
# Interface Errors
$poller = @{
PollerType="I.StatisticsErrors32.SNMP.IfTable";
NetObject="I:"+$ifaceProps["InterfaceID"]
}
$pollerUri = New-SwisObject $swis -EntityType "Orion.Pollers" -Properties $poller
#
# Interface Status
$poller = @{
PollerType="I.Status.SNMP.IfTable";
NetObject="I:"+$ifaceProps["InterfaceID"]
}
$pollerUri = New-SwisObject $swis -EntityType "Orion.Pollers" -Properties $poller
#
# Interface Rediscovery
$poller = @{
PollerType="I.Rediscovery.SNMP.IfTable";
NetObject="I:"+$ifaceProps["InterfaceID"]
}
$pollerUri = New-SwisObject $swis -EntityType "Orion.Pollers" -Properties $poller
#