Error with Service Now push adapter for IP CI type

Anyone here made the out of box Service Now push adapter work? I'm able to successfully load some sample Windows and Interface CIs, but the IP Address CI fails. I've tried several iterations and haven't found the trick yet.

I'm going to try to get some data from the SN side as well, but was wondering if anyone else has encountered an issue with the IP address CI type in the push and overcome it.
The (rather generic) error I'm getting is:
java.lang.Exception: java.lang.Exception: [DiscoveryMain] [processCIs] [processCIs:add] Error connecting to Service-Now while processing CIT <cmdb_ci_ip_address>

There are only two attributes being passed by default in the sample XML file too - the ip address and the name.
We've gotten the same behavior with UCMDB 10.01 and 10.10. I'm probably not providing enough information to do any real troubleshooting, but wondering if anyone else has seen the same behavior.

Thanks for any help you can provide!