The described issue is not common. You could try disabling any ajax on the page and observe if the issue still persists. However, the issue could either be a problem with our code or the scenario implementation. If the issue still persists we will need a step by step instructions on how to replicate the issue and a sample runnable application
which shows the unwanted behavior. Note that you could open a formal ticket and upload the project with the description there.
the Telerik team
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