如何解决ECharts中双X轴第二个标签不显示的问题？

xAxis: [{
    name:'1',
    min: startTime,
    scale: true,
    axisLine: {
        show: true,
        lineStyle: {
          color: colors[2]
        }
      },
      
    axisLabel: {
      backgroundColor:'red',
        formatter: '{value} ml'
      }
  },{
    name:'2',
    axisLine: {
        show: true,
        lineStyle: {
          color: colors[2]
        }
      },
    min: startTime,
    scale: true,
    axisLabel: {
      backgroundColor:'red',
      inside:true,
      show:true,
      hideOverlap:true,
        // formatter:  '111ml'
      }
  },],

series: [
    {
      type: 'custom',
      renderItem: renderItem,

      itemStyle: {
        opacity: 0.8
      },
      encode: {
        x: [1, 2],
        y: 0
      },
      data: data
    },
    {
      type: 'custom',
      renderItem: renderItem,
      xAxisIndex: 1,
      itemStyle: {
        opacity: 0.8
      },
      encode: {
        x: [1, 2],
        y: 0
      },
      data: data
    }
  ]