After reviewing your inquiry I would like to submit a bug on this item. I am including the provided movie in this report. This will most likely be enough information for them to review this, but they may also ask if it is possible to have access to your site so that we can test functionality after/while we are resolving it.
I have created bug ID 102380, and will await an update from you on the project status to provide to my developers.
the Telerik team