GF Survey chart question

Hi,
I just upgraded to the current version. But realized that the bar chart for multi-line changed. It listed all the result options and forced all the filled result at the upper side area of the chart.

This behavior is showing at your website as well.
https://maxicharts.com/gf-survey-add-on-multi-lines/ which I think is quite different from the previous intention.

Will there be any bug fix on the way? Please kindly advise.
Thank you.