Private message (privateMessage) is not shown for all the signers in create agreement API call

In the create agreement with password security I am using the privateMessage option to share the password information to the user, only one user is getting the privateMessage in their email, below is the request. please help.

{

  "documentCreationInfo": {

    "fileInfos": [

      {

        "transientDocumentId": "3AAABLblqZhCjyQWk8uKLzwlmidSTi7eHcY252ScsqW1a_UbUTtpwB908t2uzo0Cd7_-vNzvnAwNPLeq9rdfQez5EiOi0uLUWVWpJMRKvmfufTM78uPhQ8tncdsFqWuj-9Wzh_ficbeDTr-sXC1ng_dy5kgi-Prlp4uyPTAoe2-RElBWjD3S7fEdMAzV_J3njoC_t_WWFo1IygWBYijXv-144oia_24gbQntYxUEcD_6mOtDbBn3k9VkKiykM9WOx871xptNmDh01kqZFzlXspy92TCvmLt0I2_pseCftSgMsaAY2bVJ0-6I-burZAXkFLn8w3z-ldDw6q8airQX3oxWE6bKE5oAs"

      }

    ],

    "locale": "en_US",

    "name": "eSignPasswordAgreement",

    "recipientSetInfos": [

      {

        "privateMessage": "Partha123 is the password to open the document",

        "recipientSetMemberInfos": [

          {

            "email": "gps.mca@gmail.com"

          }

        ],

        "recipientSetRole": "SIGNER",

        "securityOptions": [

          {

            "authenticationMethod": "PASSWORD",

            "password": "Partha123"

          }

        ]

      },

      {

        "privateMessage": "Satya123 is the password to open the document",

        "recipientSetMemberInfos": [

          {

            "email": "Satya.Prakash@gmail.com"

          }

        ],

        "recipientSetRole": "SIGNER",

        "securityOptions": [

          {

            "authenticationMethod": "PASSWORD",

            "password": "Satya123"

          }

        ]

      }

    ],

    "signatureFlow": "SENDER_SIGNATURE_NOT_REQUIRED",

    "signatureType": "ESIGN"

  }

}