如题，直播中已经设置应用权限，调用打开直播接口正常，下载回放报错。

wx.agentConfig({
    corpid: [[${corpID}]],
    agentid: [[${agentid}]],
    timestamp: [[${timestamp}]],
    nonceStr: [[${noncestr}]],
    signature: [[${signature}]],
    jsApiList: ['hideOptionMenu','downloadLivingReplay'], //必填
    success: function(res) {
        wx.hideOptionMenu();
        wx.invoke('downloadLivingReplay', {
            "livingId": [[${liveId}]],
        }, function(res) {
            if (res.err_msg != "downloadLivingReplay:ok") {
                console.log(res.err_msg);
            }
        });
    },
    fail: function(res) {
        alert("初始化失败:" +  res.err_msg);
    }
});