Snazzymaps - 缩放时指针放置不正确

Question

我遇到的问题是2指针没有正确放置。

Normal without zooming

Different placement when zoomed

我必须使用Snazzymaps。这是代码（没有样式）：

  {name: "KOV"});
    var twee= {lat: 52.345975, lng: 6.655401};
    var een= {lat: 52.366489, lng: 6.670262};
    var nederland = {lat: 52.3126646, lng: 5.8707948};
    var map = new google.maps.Map(document.getElementById('map'), {
      center: een,
      zoom: 13,  
      mapTypeControlOptions: {
        mapTypeIds: ['KOV']
      }
    });

   var image = {
      url: 'http://kovhig793.nederland.cloudserver6.nl/bestanden/goedehuisje.png',
      size: new google.maps.Size(180, 180)
    };

   var marker = new google.maps.Marker({
      position: een,
      map: map,
      animation: google.maps.Animation.DROP,
      title: "KOV High Five",
      icon: image
    });

   var marker = new google.maps.Marker({
      position: twee,
      map: map,
      animation: google.maps.Animation.DROP,
      title: "KOV High Five2",
      icon: image
    });

有没有解决方案可以解决这个问题？或者它是Snazzymaps本身的错误？