Error reading multipart Batch Response

Hello, I am trying to build an OData server using Microsoft.AspnetCore.OData.
I have a problem when I try to send a Batch request with a multipart request. The problem seems happend in the response.
In this repository, https://github.com/GLuca74/TestOData, there is a solution with 3 projects :

TestODataServer - The server
TestODataClient - The client
TestODataModels - A shared Entity

the client request is processed by the server and it is able to receive the response, but when I try to read the actual response I get an error.
To read the response I use Microsoft.AspNet.WebApi.Client.
This is the code :

                using (var response = await httpClient.SendAsync(request).ConfigureAwait(false))
                {
                    if (!response.IsSuccessStatusCode)
                    {
                        HttpRequestException ex = new HttpRequestException(await response.Content.ReadAsStringAsync(), null, response.StatusCode);
                        throw ex;
                    }
                    var multipart = await response.Content.ReadAsMultipartAsync(); 
                    foreach (var c in multipart.Contents)
                    {
                        var responses = await c.ReadAsMultipartAsync();
                        foreach (var r in responses.Contents)
                        {
                            var xx1 = await r.ReadAsHttpResponseMessageAsync(); //here i get an exception
                        }

                    }
                }

The exception is :

System.ArgumentException
  HResult=0x80070057
  Messaggio=Invalid 'HttpContent' instance provided. It does not have a content type header with a value of 'application/http; msgtype=response'. Arg_ParamName_Name
  Origine=System.Net.Http.Formatting
  Analisi dello stack:
   in System.Net.Http.HttpMessageContent.ValidateHttpMessageContent(HttpContent content, Boolean isRequest, Boolean throwOnError)
   in System.Net.Http.HttpContentMessageExtensions.ReadAsHttpResponseMessageAsync(HttpContent content, Int32 bufferSize, Int32 maxHeaderSize, CancellationToken cancellationToken)
   in System.Net.Http.HttpContentMessageExtensions.ReadAsHttpResponseMessageAsync(HttpContent content, Int32 bufferSize, Int32 maxHeaderSize)
   in System.Net.Http.HttpContentMessageExtensions.ReadAsHttpResponseMessageAsync(HttpContent content, Int32 bufferSize)
   in System.Net.Http.HttpContentMessageExtensions.ReadAsHttpResponseMessageAsync(HttpContent content)
   in TestODataClient.Program.<Main>d__0.MoveNext() in D:\VM\TestOData\TestODataClient\Program.cs: riga 75

sniffing request and response with Fiddler, i have this :

POST https://localhost:7200/$batch HTTP/1.1
Host: localhost:7200
OData-Version: 4.0
OData-MaxVersion: 4.0
Accept: multipart/mixed
Accept-Charset: UTF-8
Connection: Keep-Alive
Content-Type: multipart/mixed; boundary=batch_3a22c121-57c7-49d9-9cd5-3f6605bb80c6
Content-Length: 639

--batch_3a22c121-57c7-49d9-9cd5-3f6605bb80c6
Content-Type: multipart/mixed; boundary=changeset_1f9fece3-486f-4279-a568-8fffe53f3653

--changeset_1f9fece3-486f-4279-a568-8fffe53f3653
Content-Type: application/http
Content-Transfer-Encoding: binary
Content-ID: 1

POST /Cities HTTP/1.1
OData-Version: 4.0
OData-MaxVersion: 4.0
Content-Type: application/json; odata.metadata=minimal
Accept: application/json;odata.metadata=minimal
Accept-Charset: UTF-8

{"CityID":"bad222ce-f863-4647-ba4c-c0929eafb971","CityName":"Madrid"}
--changeset_1f9fece3-486f-4279-a568-8fffe53f3653--

--batch_3a22c121-57c7-49d9-9cd5-3f6605bb80c6--

HTTP/1.1 200 OK
Content-Type: multipart/mixed;boundary=batchresponse_d96b63e0-77dd-41aa-b3ac-0e9d6cb38562
Date: Thu, 11 Jul 2024 14:07:49 GMT
Server: Kestrel
Transfer-Encoding: chunked
OData-Version: 4.0

1fe
--batchresponse_d96b63e0-77dd-41aa-b3ac-0e9d6cb38562
Content-Type: multipart/mixed; boundary=changesetresponse_631283f4-b5fd-48b4-8e9e-4244ca32cb53

--changesetresponse_631283f4-b5fd-48b4-8e9e-4244ca32cb53
Content-Type: application/http
Content-Transfer-Encoding: binary
Content-ID: 1

HTTP/1.1 201 Created
Location: https://localhost:7200/Cities(bad222ce-f863-4647-ba4c-c0929eafb971)
Content-Type: application/json; odata.metadata=minimal; odata.streaming=true; charset=utf-8
OData-Version: 4.0


fe
{"@odata.context":"https://localhost:7200/$metadata#Cities/$entity","CityID":"bad222ce-f863-4647-ba4c-c0929eafb971","CityName":"Madrid"}
--changesetresponse_631283f4-b5fd-48b4-8e9e-4244ca32cb53--
--batchresponse_d96b63e0-77dd-41aa-b3ac-0e9d6cb38562--

0

It seems that ReadAsHttpResponseMessageAsync not like this

--changesetresponse_631283f4-b5fd-48b4-8e9e-4244ca32cb53
Content-Type: application/http // msgtype=response seems missing

I tryed in a custom ODataBatchHandler to found a way to add msgtype=response to the response but i wanst able to found if is possible and where

I also tryed to use Microsoft.OData.Client and it works without problems, but I can not use this library.

Can you help me found a solution?