Calling Flow instance api not showing data

I am calling this api

hcmRestApi/resources/11.13.18.05/flowInstances?

to get data of completed HCM extract details

I have created a custom role and also added privilege

Use REST Service - Payroll Flow Instances (ORA_PAY_REST_SERVICE_ACCESS_PAYROLL_FLOW_INSTANCES)

Use REST Service - Payroll Flow Patterns (ORA_PAY_REST_SERVICE_ACCESS_PAYROLL_FLOW_PATTERNS)

but still I am not getting data from postman calling the api.

getting result like this only

Please help

{    "items": [],    "count": 0,    "hasMore": false,    "limit": 25,    "offset": 0,    "links": [        {            "rel": "self",            "href": "https://fa-ewki-dev3-saasfademo1.ds-fa.oraclepdemos.com:443/hcmRestApi/resources/11.13.18.05/flowInstances",            "name": "flowInstances",            "kind": "collection"        }    ]}