Treemap does not center vertically after setting the rich attribute

[setWan]

1、open url：https://echarts.apache.org/examples/en/editor.html?c=treemap-disk
2、setting option：

option = {
  series: [
    {
      type: 'treemap',
      name: '中国',
      leafDepth: 1,
      drillDownIcon: '',
      width: '100%',
      height: 160,
      top: 'top',
      bottom: 32,
      label: {
        align: 'center',
        verticalAlign: 'top',
        formatter(params) {
          return `${params.name}\n（${params.value}/{high|${params.value}}）`
        },
        rich: {
          high: {
            color: 'red'
          }
        }
      },
      data: [
        {
          name: '北京',
          value: 20,
          children: [
            {
              name: 'qiche',
              value: 20
            }
          ]
        },
        {
          name: '北京',
          value: 20
        },
        {
          name: '北京',
          value: 30
        },
        {
          name: '北京',
          value: 10
        },
        {
          name: '北京',
          value: 10
        },
        {
          name: '北京',
          value: 5
        },
        {
          name: '其他',
          value: 5
        }
      ]
    }
  ]
}

3、Invalidate vertical centering after setting the rich attribute