problem description

recently I was contacting and writing Mini Program, and I encountered a problem. I don"t know why, that is, I render the data to the foreground page in the developer"s tool, which is normal in the developer"s tool, but it"s not right to preview it on the phone. The radio column above
is displayed normally, but the data under the hot song list below can"t be displayed. Ask for an answer. What"s the reason?
Thank you!

the environmental background of the problems and what methods you have tried

related codes

/ / Please paste the code text below (do not replace the code with pictures)
the code is as follows
< view class="radioTest" >

<text></text>

< / view >
< view class="radio-box" >

<block wx:for="{{data.radioList}}">
  <view class="radio-item">
  <view class="radio-item-image-box">
    <image class="radio-item-image" src="{{item.picUrl}}" mode="widthFix" />
    <view class="play-icon"></view>
  </view>
  <view class="radio-iten-title">{{item.Ftitle}}</view> 
  </view>
</block>

< / view >
< view class="hot-songList" >

<text></text>

< / view >
< view class="hot-songList-box" >

<block wx:for="{{data.songList}}">
  <view class="hot-songList-item">
    <view class="hot-songList-item-image-box">
      <image class="hot-songList-item-image" src="{{item.picUrl}}" mode="widthFix" /> 
      <view class="play-icon"></view>
    </view>
    <view class="hot-songList-item-info">
      <view class="hot-songList-item-info-title">{{item.songListDesc}}</view>
      <view class="hot-songList-item-info-author">{{item.songListAuthor}}</view>
    </view>
  </view>
</block>

< / view >

what result do you expect? What is the error message actually seen?