api.insert_order返回的委托单状态、成交和未成交数量不对

#!/usr/bin/env python
#  -*- coding: utf-8 -*-
# 均线金叉开仓死叉平仓策略
__author__ = "ZYP"
 from tqsdk import TqApi,TqSim,TqBacktest,BacktestFinished
from tqsdk.ta import MA
import time
from datetime import date
 SYMBOL = "SHFE.rb2005"
 # 开仓条件函数
def open_position(klines):  
    ma20 = MA(klines, 20)
    ma40 = MA(klines, 40)
    if (ma20.iloc[-1].ma > ma40.iloc[-1].ma) and (ma20.iloc[-2].ma < ma40.iloc[-1].ma):
        return 1
    return 0
 # 平仓条件函数
def close_position(klines):
    ma20 = MA(klines,20)
    ma40 = MA(klines,40)
    if (ma20.iloc[-1].ma < ma40.iloc[-1].ma) and (ma20.iloc[-2].ma > ma40.iloc[-1].ma):
        return 1
    return 0
 try:
    api=TqApi(web_gui = "http://127.0.0.1:52974", backtest=TqBacktest(start_dt=date(2020, 4, 7), end_dt=date(2020, 4, 10)))
    klines = api.get_kline_serial(SYMBOL, 5 * 60, 100)
    while True:
        api.wait_update()
        # 开仓
        if open_position(klines):
            long_position = api.get_position(SYMBOL)
            order = api.get_order()
            if long_position['pos_long_his']==0 and order=={}:
                order = api.insert_order(symbol=SYMBOL, direction="BUY", offset="OPEN", volume=1)
                print("我开仓了","委托状态:%s, 已成交:%d手, 未成交:%d手" %(order.status, order.volume_orign-order.volume_left, order.volume_left))
                quote = api.get_quote(SYMBOL)
                print(quote["datetime"])
                # 当开仓了，更新transaction.txt文件，然后运行发送邮件脚本就可以将交易记录发送邮件
                f = open("transaction.txt","w",encoding = "utf8")
                f.write(quote["datetime"]+":我开仓了")
                f.close()
                time.sleep(5)
         # 平仓
        if close_position(klines):
            long_position = api.get_position(SYMBOL)
            if long_position['pos_long_his'] != 0:
                order = api.insert_order(symbol=SYMBOL, direction="SELL", offset="CLOSE", volume=1)
                print("我平仓了")
                quote = api.get_quote(SYMBOL)
                print(quote["datetime"])
                # 当平仓了，更新transaction.txt文件，然后运行发送邮件脚本就可以将交易记录发送邮件
                f = open("transaction.txt","w",encoding="utf8")
                f.write(quote["datetime"]+":我平仓了")
                f.close()
                time.sleep(5)
except BacktestFinished as e:
  # 回测结束时会执行这里的代码
  #print(acc.trade_log)
  pass
api.close()

请教下，在使用api.insert_order下单后，回测显示已经全部成交，但是order返回的状态还是ALIVE，成交是0手，未成交1手，按理应该成交是1，未成交未0