title: High chart items missing in mobile view
body: <p>I am using 3d dount chart. In desktop view, everything works fine, but, in mobile view, 3 items are missing.</p>
  <p>Please help me how can I solved it.</p>
  <p>Here is my code:</p>
  <pre><code>Highcharts.chart('container-charts', {
      chart: {
        type: 'pie',
        options3d: {
          enabled: true,
          alpha: 45
        }
      },
      title: {
        text: 'Our Curriculam showing with charts'
      },
      credits: {
        enabled: false
    },
  
    navigation: {
        buttonOptions: {
            enabled: false
        }
    },
  
      plotOptions: {
        pie: {
          innerSize: 100,
          depth: 45
        }
      },
      series: [{
        name: 'Subject Name',
        data: [
          ['Functional Communication Training', 8],
          ['Brushing and Feeding Training', 8],
          ['Sleep disturbance management', 8],
          ['Managing difficult behavior', 8],
          ['Toilet Training', 8],
          ['Adiel activities in general', 8],
          ['ADHD management', 8],
          ['Speech Therapy', 8],
          ['Occupational Therapy', 8],
      
        ]
      }]
    });
  </code></pre>
  <p><em>Screenshot in desktop view:</em></p>
  <p><a href="https://i.stack.imgur.com/3f1JS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3f1JS.png" alt="enter image description here" /></a></p>
  <p><em>Screenshot in mobile view:</em></p>
  <p><a href="https://i.stack.imgur.com/IOZPO.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IOZPO.png" alt="enter image description here" /></a></p>