Hello,
Form the provided information it is not clear what exactly may be causing the described behavior. In such case I could only recommend you to refer to this help topic where you may find a possible solution. If it still does not help I would kindly suggest you to submit a support ticket from your Telerik account and send us a sample web page where the issue is isolated so we could inspect it and be more helpful.
Regards,
Plamen
Telerik
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