Microchart Issue with negative values

Hi,

I'm using Webi to create microcharts for viewing on IOS, but if my data contains any negative values then the app crashes.

BO4.0 SP6

App v6.1.9

The report in question is looking at the last 8 weeks sales trend (year on year %). The report displays as normal in all cases when you open it - it's only when double tapping the chart to expand it.

If I hard code some numbers which are all positive the graph can be expanded without any issue. But using the genuine data if any of the last 8 weeks had negative growth, when I double tap the chart the app crashes.

Is this a known issue?

Has anyone else found this problem?

Thanks!