Flex4: Different lengths of tabbar button text slows loading time

Question

This is possibly a bug
if the size of text in tabbar buttons in a <s:Tabbar> component are of different sizes, it slows down application completion time - please see following code - if the length of the text is same (I did that by appending spaces to the label values, the application renders immediately - otherwise the "loading" progressBar goes till the end, then stays there for about 5 seconds before rendering - the length of the tabs is also messed up
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600" >
    <fx:Declarations>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <s:TabBar x="11" y="66" width="80%" height="25" dataProvider="{updatesViewStack}"
              fontFamily="Verdana" fontSize="17" fontWeight="bold" textAlign="center"/>
    <mx:ViewStack x="12" y="109" id="updatesViewStack" width="800" height="800">
        <s:NavigatorContent label="Tab1" width="100%" height="100%">
        </s:NavigatorContent>
        <s:NavigatorContent label="Mytab 22" width="100%" height="100%">
        </s:NavigatorContent>
        <s:NavigatorContent label="Another tab here" width="100%" height="100%">
        </s:NavigatorContent>
        <s:NavigatorContent label="And more " width="100%" height="100%">
        </s:NavigatorContent>
        <s:NavigatorContent label="And a last one" width="100%" height="100%">
        </s:NavigatorContent>
    </mx:ViewStack>
</s:Application>

Answer 1

Interesting.  I think I am seeing this too.  Can you please file a bug at http://bugs.adobe.com/flex/ and then post the link to that bug here?