Visualization for vaadin: Line chart doesn't show up after setting its data

Hi everyone,

I’ve started using visualization for vaadin a week ago , i’ve been using the LineChart component and adding it into the application.
I’ve been struggling with a really annoying problem :
the LineChart show up when it’s initialized for the first time, but when i try to fill it with data clicking on the refresh button the LineChart doesn’t show up anymore.
I’ve tried to use requestRepaint() on the LineChart but it’s the same.
Can you please help me with that, i’ll be thankfull for any suggestion.

Ps: I’ve setted the layouts whre i’m putting the LineChart to setImmediate(true).