Chart type Area issue

Hello community,

I'm facing an issue with a Chart, a Area Chart Type, i checked in a forum but found nothing compares to this.

I have 5 KPI in this chart, and it seems the graph scaling is taken only for my last KPI.

Here a screenshot for the same datasource, same filter, but one graph in Area Type, and the other in Line Type.

KPI in Yellow :

KPI in green :

As you can see, plot positionning is totally wrong. And in this case, only "Total CPD" (in red) is OK

Is there something very specific in Area Chart ? Did i miss something ? Or Design Studio has a bug ?

Only the last KPI has the right schedule. For the others, the position in the chart is just a random...

Thanks for your help !