I was using CanvasJS v1.8.0 and everything was good. Now I updated to latest version and there is a problem with one of my charts.
I am using shared toolTips and toolTipContent on dataSeries level. The problem is that in the toolTip box there is the second “toolTipContent” twice.
In v1.8.0 toolTipContents from the different series were stacked in the tooltip box.