请求发送成功，并且可以正确获取数据
AppData中，首先musiclist是空数组，等待一会后显示出有数据被写入，但是组件没有接收到新的值
console中显示

[Component] property "musiclist" of "components/musiclist/musiclist" received type-uncompatible value: expected <Array> but got non-array value. Used empty array instead.

看起来this.setData并没有重新渲染组件，请老师帮忙看下

musiclist.js

 onLoad(options) {
    wx.showLoading({
      title: '加载中...',
    })
    wx.cloud.callFunction({
      name: 'music',
      data: {
        playlistId: options.playlistId,
        $url: 'musiclist'
      }
    }).then(res => {
      const pl = res.result.playlist
      this.setData({
        musiclist: pl.tracks,
        listInfo: {
          coverImgUrl: pl.coverImgUrl,
          name: pl.name,
        },
      })
      wx.hideLoading()
    })
  },

musiclist.wxml

<capy-musiclist musiclist="{{musiclist}}" />

musiclist.json

{
  "usingComponents": {
    "capy-musiclist": "/components/musiclist/musiclist"
  }
}

component musiclist.js

  properties: {
    musiclist: Array,
  },

component musiclist.wxml

<block wx:for="{{musiclist}}" wx:key="id">
  <view class="musiclist-container">
    <view class="musiclist-index">{{index+1}}</view>
    <view class="musiclist-info">
      <view class="musiclist-name">
      {{item.name}}
      <text class="musiclist-alia">{{item.alia.length==0?"":item.alia[0]}}</text>
      </view>
      <view class="musiclist-singer">
      {{item.ar[0].name}} - {{item.al.name}}
      </view>
    </view>
  </view>
</block>