CCC2 stacked bar chart's values didn't appear with complete text

Hello,
I am creating a dashboard with the stacked bar chart component.
I want to show the values(valuesMask:{category}({value.percent)}) within the bar but it didn't show the complete text even the valuesOverflow properties set to be 'Show'. I don't want the bar size to be more large.

I want to show the complete text within the bar with multiline texts.

Please,could you guys help me on this?????

Thanks in advance...

Mukesh