Perform a corrective action rest api is not working

Dear ,

We have an Perform a corrective action rest api which is working fine before 17th-Sep-24

after that it will gives an 400 bad request error

we did not change anything but still get same error

even i tried the same thing on postman it gives 400 bad request error

so want to know what should i change is there any any URL changes or something else

URL = https://<host>:<port>/hcmRestApi/resources/11.13.18.05/flowInstances/(id)/action/performAction

BODY: -->{
    "actionName": "ORA_BULK_ROLLBACK"}

METHOD -->  POST
HEADERS --> Content-Type:application/vnd.oracle.adf.action+json

document reference =

Thanks