RealTime with panes - bug?

[Angel]

Hi, I am trying to add Data to the panels different from the panel 0 and he returns me the error: "Overflow error "

the code that I execute is:

this.RealTime.BeginAddData(1, RealTimeAction.Append);

this.Data[1, 0] = value;  // where 1 is serie in the panel 1,

this.RealTime.EndAddData(false, true);

if I put all the series in the same pane I don't have problem

or if I add the data without the real time I don't have problem too

 

thanks