Thanks for quick answer, here is sample code that duplicates issue ( little different than mine). I couldn't attach file, but just copied code below.

Thanks

// HTML Body

<table>
<tr><td colspan=2>
<input type="button" value="click here first" onclick="createChart()" />
<input type="button" value="Create here second" onclick="createPieChart()" />
<input type="button" value="Create here third" onclick="createPieChart1()" />
<td></td><tr><td>
<div id="chart1"></div>
</td><td>
<div id="legend"></div>
</td>
</table>

// Javascript

var data1 = [
{ "DateString": "1/1/2010", "Open": 1000, "High": 1019.75, "Low": 967.75, "Close": 995 },
{ "DateString": "1/1/2010", "Open": 800, "High": 1019.75, "Low": 967.75, "Close": 995 },
{ "DateString": "1/2/2010", "Open": 995, "High": 1016.75, "Low": 975, "Close": 1004 },
{ "DateString": "1/2/2010", "Open": 925.5, "High": 1000.25, "Low": 912.75, "Close": 999.25 },
{ "DateString": "1/3/2010", "Open": 940.25, "High": 1040.25, "Low": 920.75, "Close": 975.25 },
{ "DateString": "1/3/2010", "Open": 1020.5, "High": 1060.25, "Low": 999.75, "Close": 1050.25 }
];
var data2 = [
{ "DateString": "11/1/2011", "Open": 1000, "High": 1019.75, "Low": 967.75, "Close": 995 },
{ "DateString": "11/2/2011", "Open": 800, "High": 1019.75, "Low": 967.75, "Close": 995 },
{ "DateString": "11/3/2011", "Open": 995, "High": 1016.75, "Low": 975, "Close": 1004 },
{ "DateString": "11/4/2011", "Open": 925.5, "High": 1000.25, "Low": 912.75, "Close": 999.25 },
{ "DateString": "11/5/2011", "Open": 940.25, "High": 1040.25, "Low": 920.75, "Close": 975.25 },
{ "DateString": "11/6/2011", "Open": 1020.5, "High": 1060.25, "Low": 999.75, "Close": 1050.25 }
];

function createPieChart() {
$("#chart1").igDataChart("destroy");
$("#chart1").igPieChart("destroy");
$('#chart1').igPieChart({
dataSource: data1,
width: '300px',
height: '300px',
valueMemberPath: 'Open',
labelMemberPath: 'DateString',
// explodedSlices: '0 1',
radiusFactor: .8,
showTooltip: true,
tooltipTemplate: '<div class="tooltip">${item.DateString}</div><div>Open: ${item.Open}</div>',
legend: { element: 'legend', type: 'item' }
});

}
function createPieChart1() {
$("#chart1").igDataChart("destroy");
$("#chart1").igPieChart("destroy");
$('#chart1').igPieChart({
dataSource: data2,
width: '300px',
height: '300px',
valueMemberPath: 'Open',
labelMemberPath: 'DateString',
// explodedSlices: '0 1',
radiusFactor: .8,
showTooltip: true,
tooltipTemplate: '<div class="tooltip">${item.DateString}</div><div>Open: ${item.Open}</div>',
legend: { element: 'legend', type: 'item' }
});

}

function createChart() {
$("#chart1").igDataChart("destroy");
$("#chart1").igPieChart("destroy");
$("#chart1").igDataChart({
width: "700px",
height: "400px",
legend: { element: 'legend'},
axes: [{
name: "xAxis",
type: "categoryX",
dataSource: data1,
label: "Label",
labelVisibility: "collapsed"
}, {
name: "yAxis",
type: "numericY",
labelVisibility: "visible"
}],
series: [{
name: "series",
dataSource: data1,
title: "Price Series",
type: "financial",
xAxis: "xAxis",
yAxis: "yAxis",
openMemberPath: "Open",
highMemberPath: "High",
lowMemberPath: "Low",
closeMemberPath: "Close",
trendLineBrush: "rgba(68, 172, 214, .8)",
trendLineType: "exponentialAverage"
}]
});
// $("chart1").igDataChart("dataBind");
}