Apollo-express-server passing only first Upload(file) and the rest are missing

I am using apollo-express server with GraphQL. I have a mutation where I pass files from front-end to back-end but I receive the file:{} object only for first one - for the other's I receive promise.

Here is my mutation declaration:

 extend type Mutation {
    createCase(input: CreateCase!, attachments: [Upload]): Case
  }

I simplified my implementation just to console.log the attachments:

Mutation: {
    createCase: async (
      parentValue: any,
      { input, attachments }: { input: CaseInterface; attachments: [File] },
      context: any
    ) => {
     
      console.log(attachments)
    }
}

I am passing the files from front-end like this:

const SEND_CASE = gql`
  mutation CreateCase($input: CreateCase!, $attachments: [Upload]) {
    createCase(input: $input, attachments: $attachments) {
      _id
    }
  }
`;

and the function usage:

 createCase({
      variables: {
        input: {
          description: props.creationData.description,
          date: new Date().toDateString(),
          priority: props.creationData.priority,
          userId: props.creationData.userId,
          categoryId: props.categories.map((el: any) => el._id),
          signature: "",
          type: props.casetype === "problem" ? 1 : 2,
        },
        attachments: props.creationData.attachments,
      },
    });

the prop.creationData.attachments is looking normal:

The problem is that in my back-end I console.log(attachments) looks-like this:

[
  Upload {
    resolve: [Function (anonymous)],
    reject: [Function (anonymous)],
    promise: Promise { [Object] },
    file: {
      filename: 'wa.jpg',
      mimetype: 'image/jpeg',
      encoding: '7bit',
      createReadStream: [Function: createReadStream]
    }
  },
  Upload {
    resolve: [Function (anonymous)],
    reject: [Function (anonymous)],
    promise: Promise { <pending> }
  }
]

The file in second Upload object is missing and the Promise there is pending. I cannot explain myself why is that. Also I have console.log the req.body and req.header if it is needed:

{
  host: '192.168.1.152:3001',
  connection: 'keep-alive',
  'content-length': '51479',
  accept: '*/*',
  'apollo-require-preflight': 'true',
  authorization: '',
  'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36',
  'content-type': 'multipart/form-data; boundary=----WebKitFormBoundaryA2VfmoLeZm9NTXsk',
  origin: 'http://localhost:3000',
  referer: 'http://localhost:3000/',
  'accept-encoding': 'gzip, deflate',
  'accept-language': 'en-GB,en-US;q=0.9,en;q=0.8,bg;q=0.7'
}
{
  operationName: 'CreateCase',
  variables: {
    input: {
      description: 'test',
      date: 'Thu Jan 19 2023',
      priority: 1,
      userId: '630899dc48a9a14833398a7e',
      categoryId: [Array],
      signature: '',
      type: 1
    },
    attachments: [ [Upload], [Upload] ]
  },
  query: 'mutation CreateCase($input: CreateCase!, $attachments: [Upload]) {\n' +
    '  createCase(input: $input, attachments: $attachments) {\n' +
    '    _id\n' +
    '    __typename\n' +
    '  }\n' +
    '}'
}

How can I have all my files in my backend to be like the first one received?

from Apollo-express-server passing only first Upload(file) and the rest are missing