Consider a column chart is plotted where Auto display unit is applied to the Yaxis tick labels depending on the data.
Refer following JS fiddle where Auto display unit applied as "G"
https://jsfiddle.net/amrutaJgtp/7arq3t5f/3
Now, change the type of Yaxis as "logarithmic".
It is observed that mixed display units are applied as "G" and "M"
https://jsfiddle.net/amrutaJgtp/7arq3t5f/2
Why is it so incase of logarithmic scale only?
I wanted to verify if this is the behavior from Highcharts.