Not able to stop flip effect available in the distortioneffects swc

Question

Hi,
I am using flip effect available in the distortioneffects.swc component(http://blogs.adobe.com/auhlmann/archives/2007/03/distortion_effe.html).I am trying to stop a running flip effect.Though the isPlaying property of the effect is false when i traced it,the effect continued playing.Using Flex 3 sdk.
Here is a sample code snippet where you can reproduce this error:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:mxeffects="com.adobe.ac.mxeffects.*">
    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;
            private function onBtn1Click():void
                if(flip1.isPlaying)
                    flip1.stop();
                viewstack1.selectedIndex = 0;
            private function onBtn2Click():void
                if(flip2.isPlaying)
                    flip2.stop();
                viewstack1.selectedIndex = 1;
        ]]>
    </mx:Script>
    <mx:Button x="170" y="153" label="One" click="onBtn1Click()"/>
    <mx:Button x="259" y="153" label="Two" click="onBtn2Click()"/>
    <mx:WipeLeft id="c1Effect" target="{c1}" duration="1000"/>
    <mx:WipeLeft id="c2Effect"  target="{c2}" duration="1000"/>
    <mxeffects:Flip id="flip1" target="{c1}" siblings="{[c2]}" duration="1000" direction="RIGHT"/>
    <mxeffects:Flip id="flip2" target="{c2}" siblings="{[c1]}" duration="1000" direction="LEFT"/>
    <mx:ViewStack x="170" y="212" id="viewstack1" width="261" height="200" creationPolicy="all">
        <mx:Canvas id="c1" width="100%" height="100%" hideEffect="{flip1}">
        <mx:DataGrid x="0" y="0" width="100%" height="100%">
                <mx:columns>
                    <mx:DataGridColumn headerText="View1" dataField="col1"/>
                </mx:columns>
            </mx:DataGrid>
        </mx:Canvas>
        <mx:Canvas id="c2" width="100%" height="100%" hideEffect="{flip2}">
            <mx:DataGrid x="0" y="0" width="100%" height="100%">
                <mx:columns>
                    <mx:DataGridColumn headerText="View2" dataField="col1"/>
                </mx:columns>
            </mx:DataGrid>
        </mx:Canvas>
    </mx:ViewStack>
</mx:Application>
Steps to reproduce:
1)Click Button 'two'.
2)When the effect is playing,quickly click on Button 'one'.
3)Effect continues to play and view1 not gets selected

Answer 1

Still i am facing this issue.Any help?