MultiColumn is not grouping correctly

[dfurda18]

Describe the bug
This is an issue I've found when trying to set a multi column chart. It is an error of rendering the chart since the chart data seems to be fine. When it is rendering, it groups some series into one replacing the title.

To Reproduce
Steps to reproduce the behavior:

1. Create a Column chart with different seriesNames, titles and value. In my example I am populating my chart with:

$chartModel->addSeriesColumn('Male', 'ArchitecturalGlassandMetalTechnician', 1);
$chartModel->addSeriesColumn('Male', 'Not specified', 1);
$chartModel->addSeriesColumn('Female', 'AgriculturalEquipmentTechnician', 1);
$chartModel->addSeriesColumn('Prefer not to disclose', 'AboriginalChildPractitioner', 3, $color);
$chartModel->addSeriesColumn('Prefer not to disclose', 'Not specified', 5, $color);

2. Display the Chart

Expected behavior
The chart should group differently those with ArchitecturalGlassandMetalTechnician, AgriculturalEquipmentTechnician, AboriginalChildPractitioner
Instead, it is grouping them together and replacing the title with ArchitecturalGlassandMetalTechnician

Screenshots
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Additional context
Add any other context about the problem here.

Solution Ideas
My guess is in multiColumnChart.js at lines 37-40 it is defaulting the series with the first element.

[ZayRTun]

I am having the same issue with multiLine chart. Is there a way to work around this?

[sylfel]

Hello

I think you need null value in your serie colum :

            ->addSeriesColumn('Male', 'ArchitecturalGlassandMetalTechnician', 1)
            ->addSeriesColumn('Male', 'AgriculturalEquipmentTechnician', null)
            ->addSeriesColumn('Male', 'Not specified', 1)
            ->addSeriesColumn('Female', 'ArchitecturalGlassandMetalTechnician', null)
            ->addSeriesColumn('Female', 'AgriculturalEquipmentTechnician', 1)
            ->addSeriesColumn('Female', 'Not specified', null)
            ->addSeriesColumn('Prefer not to disclose', 'ArchitecturalGlassandMetalTechnician', null)
            ->addSeriesColumn('Prefer not to disclose', 'AgriculturalEquipmentTechnician', 3)
            ->addSeriesColumn('Prefer not to disclose', 'Not specified', 5);

Or

            ->addSeriesColumn('ArchitecturalGlassandMetalTechnician', 'Male', 1)
            ->addSeriesColumn('AgriculturalEquipmentTechnician', 'Male', null)
            ->addSeriesColumn('Not specified', 'Male', 1)
            ->addSeriesColumn('ArchitecturalGlassandMetalTechnician', 'Female', null)
            ->addSeriesColumn('AgriculturalEquipmentTechnician', 'Female', 1)
            ->addSeriesColumn('Not specified', 'Female', null)
            ->addSeriesColumn('ArchitecturalGlassandMetalTechnician', 'Prefer not to disclose', null)
            ->addSeriesColumn('AgriculturalEquipmentTechnician', 'Prefer not to disclose', 3)
            ->addSeriesColumn('Not specified', 'Prefer not to disclose', 5);