Unfortunately we are not aware of this problem and no one has reported something similar. Is your app publicly accessible? If so, the best way for us to troubleshoot the issue is to see it first-hand. Please provide us with the means to reproduce the issue locally.
If you consider the info too sensitive for the forum then please go ahead and file a support ticket on this. A support ticket is completely confidential.
All the best,
the Telerik team
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