Chart tooltips sometimes show outside of browser window

[Datafyer]

I have a chart which is essentially 100% of the browser window.
Tooltips are standard code like:

<ChartTooltip Visible="true" Shared="true" />

 

When the user hovers at the bottom of the chart item then the tooltip goes off screen and is cut off.

 

[Svetoslav Dimitrov]

Hello Patrick,

I have opened a Bug Report on our public Feedback Portal based on the information you have provided. You can see it from this link. I have given your Vote for it to raise its popularity and you can Follow it for email notifications on status updates. 

Regards,
Svetoslav Dimitrov
Progress Telerik