When usint the UpdatePanelAnimationExtender, the FadeOut/FadeIn animation adds a filter, transform and backgroundColor (#ffffff) to the animation target control. Once the FadeIn has completed, the style change remains. Upon displaying another control (div) on top of that target using an AnimationExtender, the contents are hidden by the background of the underlying target. A workaround has been to programatically reset the cssText after the FadeIn.
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