Hello,
In the example below I have a stacked bar chart that does not display any value in the tooltip if the value is 0:
https://codepen.io/DessyTomova/pen/PoqOxEe?editors=0110
When using a non stacked chart, the toolrip would show e.g. "Team A - 0 Points" and I would expect this is the intended behavior for both stacked and non-stacked.