如何解决ECharts双X轴图表中第二个X轴标签不显示的问题？

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
    }
  }],

series: [
    {
      type: 'custom',
      renderItem: renderItem,
      itemStyle: {
        opacity: 0.8
      },
      encode: {
        x: [1, 2],
        y: 0
      },
      data: data,
      xAxisIndex: 0 //明确指定使用第一个x轴
    },
    {
      type: 'custom',
      renderItem: renderItem,
      itemStyle: {
        opacity: 0.8
      },
      encode: {
        x: [1, 2],
        y: 0
      },
      data: data,
      xAxisIndex: 1 //明确指定使用第二个x轴
    }
  ]