group - Grouped bars have different spacing in Highcharts. Why? -

group - Grouped bars have different spacing in Highcharts. Why? -

i have bar chart 1 grouping of 5 items. strangely, distance between bars within same grouping different. tried out imaginable settings on references list, in vain.

here graph.

the plotoptions code this:

plotoptions: { series: { borderwidth: 0, shadow: false, pointwidth: 10 } },

thanks hints.

the problem pointwidth property - chart little value, remove or alter ~7.

highcharts group bar-chart