Troubleshooting n8n Workflow Integration with Dust: Request Issues

Using the Community Dust node (https://docs.dust.tt/docs/n8n)

I've correctly set up the credential, and have validated they are working, although I always get a "Request failed with status code 401" error

Using the http request node

I am using the credential set up via the community dust node, which are working fine, but when I make the API call, I get an immediate output 200 that tells me the request has been successfuly sent, but I am not able to get the answer generated by the agent.

I am sending "blocking": true in the Json body request, which -accordingly to the documentation- is supposed to wait until the answer is generated before sending back an output (with the answer)

I also tried adding another http request node after the first one (POST), to make a GET request to fetch the conversation's answer, but I get an empty content payload