On mobile device (Ipad, iPhone, Android etc.) once zoom has been activated on a chart with drill-down, the drill-down feature does not work anymore

[echarlus]

I have bar charts with both zoom & drill-down enabled. On a desktop all features work as expected : I can drill down, drill up then zoom and drill down again. On a mobile device (both IOS & Android on chrome) I can drill down & up but if I zoom in and then zoom-out then drill down is not working anymore. One has to reset the page and redraw the chart for it to work again (this is on official version 4.0.0).