Bulk Extract returns only 1 record or empty file for Incident object

Summary:

Hi All,

We are trying to export object data (Incidents, Contacts, etc.) using the Bulk Extract REST API. Below are the steps executed and the results observed.

1. Create Bulk Extract

Endpoint

POST :  /services/rest/connect/v1.4/bulkExtracts

Request Body

{  "class": "Incident",  "name": "ExtractExample",  "state": {    "lookupName": "Run"  },  "version": "v1.4"}

Response

• Bulk Extract created successfully
• Extract ID = 8

We also tested by adding filters such as Assigned Staff Group, Status, Created Time, Updated Time, and Closed Time.
In those cases, the extract returns either an empty file or only 1 incident record, even though more records exist.

2. Check Extract Status

Endpoint

GET /services/rest/connect/v1.4/bulkExtractResults/8