Hi,

I have two series in the same xamWebChart (line graph) and both series have markers.  I noticed that sometimes when I load data onto this chart, I will get this really obscure error which forces me to resize the chart and it correctly shows the two data lines after.  So I was wondering what is causing this error and how do I fix it?

<igChart:XamWebChart x:Name="m_weekMonthGraph" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="0" Grid.Row="0">
            <igChart:XamWebChart.Legend>
                <igChart:Legend Visibility="Collapsed" />
            </igChart:XamWebChart.Legend>
            <igChart:XamWebChart.Scene>
                <igChart:Scene>
                    <igChart:Scene.GridArea>
                        <igChart:GridArea BorderThickness="0" Background="#00ffffff" />
                    </igChart:Scene.GridArea>
                </igChart:Scene>
            </igChart:XamWebChart.Scene>
            <igChart:XamWebChart.Series>
                <igChart:Series x:Name="m_driverSeries" ChartType="Line" DataSource="{Binding DriverIdlingDisplayStats}"
                                DataMapping="Label=EventDate;Value=TotalIdleMinutes;ToolTip=IdlingToolTip"
                                Fill="{Binding Source={StaticResource m_red3DBrush}}">
                    <igChart:Series.Marker>
                        <igChart:Marker Type="Circle" Foreground="Transparent" Fill="Maroon" MarkerSize="5" />
                    </igChart:Series.Marker>
                </igChart:Series>
                <igChart:Series x:Name="m_fleetSeries" ChartType="Line" DataSource="{Binding FleetIdlingDisplayStats}"
                                DataMapping="Label=EventDate;Value=TotalIdleMinutes;ToolTip=IdlingToolTip"
                                Fill="{Binding Source={StaticResource m_blue3DBrush}}">
                    <igChart:Series.Marker>
                        <igChart:Marker Type="Rectangle"  Foreground="Transparent" Fill="Navy" MarkerSize="5" />
                    </igChart:Series.Marker>
                </igChart:Series>
            </igChart:XamWebChart.Series>
            <igChart:XamWebChart.Axes>
                <igChart:Axis Name="AxisX" AxisType="PrimaryX" Unit="5">
                    <igChart:Axis.Label>
                        <igChart:LabelGroup Angle="45" />
                    </igChart:Axis.Label>
                </igChart:Axis>
                <igChart:Axis Name="AxisY" AxisType="PrimaryY" Stroke="#58FFFFFF" Visibility="Visible" StrokeThickness="0" AutoRange="True">
                    <igChart:Axis.MajorGridline>
                        <igChart:GridlineGroup Visibility="Collapsed"/>
                    </igChart:Axis.MajorGridline>
                    <igChart:Axis.MinorGridline>
                        <igChart:GridlineGroup Visibility="Collapsed"/>
                    </igChart:Axis.MinorGridline>
                    <igChart:Axis.MajorTickMark>
                        <igChart:TickMarkGroup StrokeThickness="1"/>
                    </igChart:Axis.MajorTickMark>
                </igChart:Axis>
            </igChart:XamWebChart.Axes>
        </igChart:XamWebChart>