Highcharts part missing issue

Open in Edge, then keep moving the mouse over the chart, especially around the yellow point for category '2016年', you will see part of the chart missing and then come back again.

by Yihao Jiang

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/themes/dark-unica.js"></script>
<div id="container"></div>

CSS

#container {
  min-width: 310px;
  max-width: 800px;
  height: 400px;
  margin: 0 auto
}

JavaScript

Highcharts.chart('container', {

  credits: {
    enabled: false
  },
  title: {
    text: "资产结构"
  },
  tooltip: {
    enabled: true,
    shared: true
  },
  xAxis: [{
    categories: ['2014年', '2015年', '2016年', '2017年半年度'],
    crosshair: true
  }],
  yAxis: [{
    title: {
      text: "金额(万元)",
      style: {
        color: "#33C4FF"
      }
    },
    labels: {
      format: "{value:,.0f}",
      style: {
        color: "#33C4FF"
      }
    },
    opposite: false
  }, {
    title: {
      text: "比率(倍)",
      style: {
        color: "#99FF33"
      }
    },
    labels: {
      format: "{value}",
      style: {
        color: "#99FF33"
      }
    },
    opposite: true
  }],
  plotOptions: {
    area: {
      stacking: 'normal'
    },
    series: {
      shadow: true
    }
  },
  legend: {
    enabled: true,
    backgroundColor: Highcharts.theme && Highcharts.theme.legendBackgroundColor || '#FFFFFF'
  },

  series: [{
    name: "流动资产",
    yAxis: 0,
    data: [{
      color: "#33C4FF",
      y: -0.01,
      Label: null,
      radius: null,
      innerRadius: null,
      SharedTooltipExtraName: "资产总额",
      SharedTooltipExtraValue: "1.69"
    }, {
      color: "#33C4FF",
      y: 0.81,
      Label: null,
      radius: null,
      innerRadius: null,
      SharedTooltipExtraName: "资产总额",
      SharedTooltipExtraValue: "306329.90"
    }, {
      color: "#33C4FF",
      y: 0.01,
      Label: null,
      radius: null,
      innerRadius: null,
      SharedTooltipExtraName: "资产总额",
      SharedTooltipExtraValue: "390056.33"
    }, {
      color: "#33C4FF",
      y: 0.07,
      Label: null,
      radius: null,
      innerRadius: null,
      SharedTooltipExtraName: "资产总额",
      SharedTooltipExtraValue: "0.09"
    }],
    type: "area",
    color: "#33C4FF",
    marker: {
      symbol: "circle"
    }
  }, {
    name: "非流动资产",
    yAxis: 0,
    data: [{
      color: "#FFE333",
      y: 1.68,
      Label: null,
      radius: null,
      innerRadius: null,
     ...