REST API for Report Builder return empty/null even with ignore_prepared_report=True?

Hi all,

I am trying to get a report where the Report Type is Report Builder, using REST API.

Referring to this :
Report result in REST API

(this is helpful btw, thankyou)

I tried the same way but it is not working.
Tested at Postman :

Tested at console :
image

I use Token Based Authentication as well (Token Based Authentication)

Tried with other report where their report type is Report Builder also, all giving me the same output which is empty/null. Did I missed something ? What/where should I improve ? Any help/guide is much appreciated.

Thankyou.

Did you find the solution?

Unfortunately not yet