Having these requests in a workspace:

• Request A, fetches random cat picture (https://dog.ceo/api/breeds/image/random)
• Request B, fetches random dog picture (https://api.thecatapi.com/v1/images/search)

And given a request C that uses two or more response body fields, only the first field will get rendered when the request gets sent.

Note:

• Request A uses jsonpath $[0].url
• Request B uses jsonpath $.message

Notice that if you swap the body field order you can see that only the first one gets rendered.

This is the textual payload present in the request body:

{
    "text": "![Dog]({% response(attribute='body', behavior='always', maxAge=60, request='/Get Random Dog Picture.json', path='b64::JC5tZXNzYWdl') %})\n![Cat]({% response(attribute='body', behavior='always', maxAge=60, request='/Get Random Cat Picture.json', path='b64::JFswXS51cmw') %})"
}