HTTPoison TLSv1.3 CHACHA20-POLY1305 issue: {:error, %HTTPoison.Error{reason: :timeout, id: nil}}

Hey

Somehow I have a Problem. If I send a HTTPoison GET request against a webpage using the AEAD-CHACHA20-POLY1305-SHA256 encryption I get an timeout.

Somehow not even an handshake issue.

The code i tried

    defaults = :ssl.cipher_suites(:default, :"tlsv1.2")

    rsa_kx =
      :ssl.cipher_suites(:all, :"tlsv1.2")
      |> :ssl.filter_cipher_suites(
        key_exchange: &(&1 == :rsa),
        cipher: &(&1 in [:aes_128_cbc, :aes_128_gcm, :aes_256_cbc, :aes_256_gcm])
      )

    options = [
      ssl: [ciphers: defaults ++ rsa_kx],
      timeout: 5_000,
      recv_timeout: 5_000,
      log_level: :debug
    ]


      res = HTTPoison.get("url", headers, options)
      IO.inspect(res)

    defaults = :ssl.cipher_suites(:default, :"tlsv1.2") # (tried also with 1.3)

    rsa_kx =
      :ssl.cipher_suites(:all, :"tlsv1.2") # (tried also with 1.3)

    options = [
      ssl: [ciphers: defaults ++ rsa_kx],
      timeout: 5_000,
      recv_timeout: 5_000,
      log_level: :debug
    ]


      res = HTTPoison.get("url", headers, options)
      IO.inspect(res)

and also tried the plain request without any changes. All dont work

somehow if i curl the url, all went fine, also if i use the fetch of nodejs.

now I am super stuck and have no clue how to continue. It could be the encryption or something else, but everything else i tried didnt change anything.
The headers are exactly the same
The httpoison resonse is:

{:error, %HTTPoison.Error{reason: :timeout, id: nil}}

Anything i could try or i miss? shouldnt the encryption already work?

Edit:
with the tlsv1.3 at least it seems like the encryption should be included

if i add :hackney_trace.enable(:max, :io) i see

#{mac => aead,key_exchange => dhe_rsa,
                                  cipher => chacha20_poly1305,prf => sha256},

in the list of {ciphers,
but still timeout