May be property watch has some error.

[sonygod]

sprite.scaleX.watch(function(before, after) { trace("change---------------"+before+"_"+ after); } );

//script.run(new Parallel([new AnimateTo(sprite.scaleY, 2, 1, Easing.backIn),new AnimateTo(sprite.scaleX, 2, 1, Easing.backIn)]));//work , trace every change

  script.run(new AnimateTo(sprite.scaleY, 2, 1, Easing.backIn));//not work ,just get only one trace.

May be property watch has some error. or that 's right?

[aduros]

Are you adding a watch() to scaleY too? The second AnimateTo line doesn't change scaleX.

If so, that's weird :) please attach a full test case I can compile and run?

[sonygod]

Are you adding a watch() to scaleY too?no ,I forget. thanks