This access denied issue was identified a while ago and the fix is available in the latest internal build and the upcoming service pack. It only happens when you run Kendo widgets with animation in a cross-domain frame.
However, the scrollbar issue is different. During the release a non-final build from the same day was uploaded by mistake and later replaced by the final one. So, if you re-download the package, it should be fixed.
the Telerik team
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