Mailchimp没有收到我发送到列表的所有成员

Question

我使用python和pycharm通过Mailchimp API将成员添加到列表中。但每当我发送一组成员时，当我去检查列表时，只有大约85％的成员号码被添加。例如，如果我发送300个成员，则只有大约256个成员进入列表。如果我发送大约500名会员，只有大约425名会员进入名单。为什么会这样？我该如何解决这个问题？（提前谢谢）

这是我的代码：

# coding: utf-8
from mailchimp3 import MailChimp
import json
from pprint import pprint

MAILCHIMP_USER="My_user_name"
MAILCHIMP_KEY="my_mailchimp_key"

# Declaracao funcao que envia listas para o mailchimp
def export_to_mailchimp():
    with open('my_list_of_members_path.json', 'r') as f:
        data = f.read()
    data = "[" + data.replace("}", "},", data.count("}") - 1) + "]"
    json_data = json.loads(data)
    pprint(json_data)
    print(json_data[0])
    #SETANADO O CLIENT
    client = MailChimp(mc_user=MAILCHIMP_USER, mc_api=MAILCHIMP_KEY)

    # Create list for dictionaries
    operations = []
    i=0
    #loop through queryset
    for user_list in json_data:
        # Create dictionary for body
        databody_item = {
            "user_id": user_list['User_id'],
            "email_address": user_list['Email'],
            "status": "subscribed",
            "merge_fields": {
                "FNAME": user_list['First_name'],
                "LNAME": user_list['Last_name']
            },
            "country": user_list['Country'],
            "city": user_list['City'],
            "unsubscribe": user_list['Unsubscribe'],
            "qty_reservas": user_list['Reservas']
        }
        # Create dictionary for a operation  17923aaab6
        operation_item = {"method": "POST", "path": "path_to_my_mailchimp_list", "body": json.dumps(databody_item)}



        # Append to list
        operations.append(operation_item)
        print(databody_item)
        print(i)
        i=i+1

    batch = client.batches.create(data={"operations": operations})


# ENVIA A TABELA PARA O MAILCHIMP
export_to_mailchimp()

就像我说的，代码工作正常，唯一的问题是缺少成员。