On Pie chart rotation - the labels disappear

I am using followig to rotate a pie chart:
<mx:Rotate id="rotate" angleFrom="{angle-90}"
angleTo="{angle}"
target="{myChart}"/>
private function rotateImage():void {
rotate.end();
angle += 90;
rotate.play();
<mx:PieChart id="myChart" dragEnabled="true"
dragComplete="rotateImage()">
So, when a user tries to drag the pie chart, the chart
rotates. The
chart rotates fine but the labels disappear? why would this
happen and
any solution to this.
Also, I would like to use some other event for rotation
instead of
dragComplet. I would like to do it when user clicks left
mouse
button+moves the mouse (both on the outside of the chart)
Any suggetions?
Thanks in advance.

Are your fonts embedded? Rotating non-embedded fonts makes
text disappear during rotation.

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