[AS3] One out of three Tweens not working

Hello,
I am a beginner in Flash and just trying to make a little image gallery with some eye candy.
The following code is a part of my script (with unnecessary things removed). At the bottom there are three Tweens to enlarge and fade-in the newly created image.

My problem is that only two of these tweens are working. If I comment out one of the tweens the other two work, but as it is right now the “scaleX”-Tween does not work.

 ActionScript Code:
 [LEFT][COLOR=#000000]**var**[/COLOR] xmlRequest:URLRequest=[COLOR=#000000]**new**[/COLOR] URLRequest[COLOR=#000000]([/COLOR][COLOR=#ff0000]"imageData.xml"[/COLOR][COLOR=#000000])[/COLOR];

[COLOR=#000000]var[/COLOR] xmlLoader:URLLoader=[COLOR=#000000]new[/COLOR] URLLoaderCOLOR=#000000[/COLOR];
[COLOR=#000000]var[/COLOR] imgData:[COLOR=#0000ff]XML[/COLOR];

[COLOR=#000000]var[/COLOR] imageLoader:Loader;
[COLOR=#000000]var[/COLOR] rawImage:[COLOR=#0000ff]String[/COLOR];

xmlLoader.[COLOR=#000080]addEventListener[/COLOR][COLOR=#000000]([/COLOR]Event.[COLOR=#000080]COMPLETE[/COLOR], xmlLoaded[COLOR=#000000])[/COLOR];

[COLOR=#000000]function[/COLOR] xmlLoadedCOLOR=#000000[/COLOR]:[COLOR=#0000ff]void[/COLOR] [COLOR=#000000]{[/COLOR]
imgData=[COLOR=#000000]new[/COLOR] [COLOR=#0000ff]XML[/COLOR]COLOR=#000000[/COLOR];
rawImage=imgData.[COLOR=#000080]image[/COLOR][COLOR=#000000][[/COLOR][COLOR=#000080]0[/COLOR][COLOR=#000000]][/COLOR].[COLOR=#000080]imgURL[/COLOR];
imageLoader=[COLOR=#000000]new[/COLOR] Loader;
imageLoader.[COLOR=#0000ff]load[/COLOR][COLOR=#000000]([/COLOR][COLOR=#000000]new[/COLOR] URLRequestCOLOR=#000000[/COLOR][COLOR=#000000])[/COLOR];

     [COLOR=#000000]**var**[/COLOR] h=imgData.[COLOR=#000080]image[/COLOR][COLOR=#000000][[/COLOR][COLOR=#000080]0[/COLOR][COLOR=#000000]][/COLOR].[COLOR=#000080]imgHeight[/COLOR];
     [COLOR=#000000]**var**[/COLOR] w=imgData.[COLOR=#000080]image[/COLOR][COLOR=#000000][[/COLOR][COLOR=#000080]0[/COLOR][COLOR=#000000]][/COLOR].[COLOR=#000080]imgWidth[/COLOR];

     canvas_mc.[COLOR=#000080]addChild[/COLOR][COLOR=#000000]([/COLOR]imageLoader[COLOR=#000000])[/COLOR];
   
     [COLOR=#000000]**var**[/COLOR] tween1:Tween=[COLOR=#000000]**new**[/COLOR] Tween[COLOR=#000000]([/COLOR]canvas_mc, [COLOR=#ff0000]"alpha"[/COLOR], Regular.[COLOR=#000080]easeOut[/COLOR], [COLOR=#000080]0[/COLOR], [COLOR=#000080]1[/COLOR], [COLOR=#000080]4[/COLOR], [COLOR=#000000]**true**[/COLOR][COLOR=#000000])[/COLOR];
     [COLOR=#000000]**var**[/COLOR] tween2:Tween=[COLOR=#000000]**new**[/COLOR] Tween[COLOR=#000000]([/COLOR]canvas_mc, [COLOR=#ff0000]"scaleX"[/COLOR], Regular.[COLOR=#000080]easeOut[/COLOR], [COLOR=#000080]0[/COLOR], [COLOR=#000080]1[/COLOR], [COLOR=#000080]4[/COLOR], [COLOR=#000000]**true**[/COLOR][COLOR=#000000])[/COLOR];
     [COLOR=#000000]**var**[/COLOR] tween3:Tween=[COLOR=#000000]**new**[/COLOR] Tween[COLOR=#000000]([/COLOR]canvas_mc, [COLOR=#ff0000]"scaleY"[/COLOR], Regular.[COLOR=#000080]easeOut[/COLOR], [COLOR=#000080]0[/COLOR], [COLOR=#000080]1[/COLOR], [COLOR=#000080]4[/COLOR], [COLOR=#000000]**true**[/COLOR][COLOR=#000000])[/COLOR];

[COLOR=#000000]}[/COLOR]
[/LEFT]

Does anyone know why and how I can fix this? I’d appreciate some help :stuck_out_tongue:

PS: The script is kind of messed up… can’t format it. Sorry about that.