python-AntiCaptcha not working with web application which requires authentication

[AdlanKadri]

we have integrated anticaptcha API using the library python-anticaptcha to Bypass the recaptcha V2 on an application that requires authentication (user-password), the API manages to return a TOKEN, but this TOKEN does not work on the page.
we tested the same thing on a DEMO page, and it works.

• Is it because we are on a web application with authentication? is there a way to handle this?

PS : we dug deeper into the browser emulation but it still doesn't pass (the error message is: Invalid reCAPTCHA.Please try again , even though I passed the token directly on the page (the hidden input of recaptcha-response )