Column series missing in mixed line & column chart

[s-blanar]

Description

I have a mixed Line & Column chart with 7 data series out of which one is a line series and the other are columns series.
I have two data points, but out of 6 column series only 4 are visible and different 4 for every data point.
Data in tooltip are complete.

Expected Behavior

There should be 6 columns and 1 line.

Actual Behavior

There are only 4 columns and different ones for each data point.

Screenshots

Reproduction Link

https://codepen.io/s-blanar/pen/JodaywG