Missing data from CampaignCriterionService.get (C#, v201601)

I'm querying a campaign using the CampaignCriterionService class

Querying the campaign's excluded IP list, I do get the enteries back from the API, however, they do not contain the actual IP address in the returned value

Here is a sample returned value from the API (after being converted to JSON by Json.Net Serialization): I bolded the value in question. I get everything I need about the Criterion except the actual data (the ip address).

{      "campaignId":347371961,     "campaignIdSpecified":true,     "isNegative":true,     "isNegativeSpecified":true,     "criterion":{                  "ipAddress":null,

                "id":23078300211,

                "idSpecified":true,

                "type":9,

                "typeSpecified":true,

                "CriterionType":"IpBlock"

    },      "bidModifierSpecified":false,      "forwardCompatibilityMap":null,      "CampaignCriterionType":"NegativeCampaignCriterion"  }    

Any help would be appreciated.

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