Highcharts custom event point of event is not right - highcharts

Question

i need to add some custom contextmenu on some column charts but here i get some strange results using the highcharts extension custom-events (https://www.highcharts.com/products/plugin-registry/single/15/Custom-Events). i have the following example: https://jsfiddle.net/4zhvdapb/
Highcharts.chart('container', {
chart: {
type: 'column'
},
title: {
text: 'Stacked column chart'
},
xAxis: {
categories: ['Apples', 'Oranges', 'Pears', 'Grapes', 'Bananas']
},
yAxis: {
min: 0,
title: {
text: 'Total fruit consumption'
},
stackLabels: {
enabled: true,
style: {
fontWeight: 'bold',
color: (Highcharts.theme && Highcharts.theme.textColor) || 'gray'
}
}
},
legend: {
align: 'right',
x: -30,
verticalAlign: 'top',
y: 25,
floating: true,
backgroundColor: (Highcharts.theme && Highcharts.theme.background2) || 'white',
borderColor: '#CCC',
borderWidth: 1,
shadow: false
},
tooltip: {
headerFormat: '<b>{point.x}</b><br/>',
pointFormat: '{series.name}: {point.y}<br/>Total: {point.stackTotal}'
},
plotOptions: {
column: {
stacking: 'normal',
dataLabels: {
enabled: true,
color: (Highcharts.theme && Highcharts.theme.dataLabelsColor) || 'white'
},
events: {
contextmenu: function (e) {
console.log("create context menu for curent series: ")
console.log(e)
console.log(e.point.category)
$('#constext-menu-div').text(e.point.category);
$('#constext-menu-div').css({top: e.pageY, left: e.pageX});
$('#constext-menu-div').show();
}
}
}
},
series: [{
name: 'John',
data: [5.32, 3.22, 4.05, 7.15, 2.22]
}, {
name: 'Jane',
data: [2.55, 2.50, 3.53, 2.05, 1.15]
}]
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<script src="https://code.highcharts.com/modules/export-data.js"></script>
<script src="https://blacklabel.github.io/custom_events/js/customEvents.js"></script>
<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>
<div style="border: solid 1px; background-color: lightgray; position: absolute; width: 100px; height: 200px; display: none; z-index: 9999;" id="constext-menu-div"></div>
(for some reason the in built code in stack overflow does not work - please use the jsfiddle link)
if you right click for example on the john serie on the buttom right side of the category grapes you will get the point/category of bananas instead of grapes. Same thing for apples where you get oranges.
does anyone have an idea what the problem is?
seems to be a bug: https://github.com/blacklabel/custom_events/issues/119