You are the first customer to reoprt such issue. We cannot reproduce the problem on our side, and we need some additional information about it. Do you reproduce that behavior on our online demos? Could you please provide more information about your setup? It will be best if you open a new support ticket and send us a simple project that reproduce the described behavior. For your convenience I have attached my test project and you just need to rework it in order to reproduce the issue. Once we have a better view over your setup, we will do our best to provide a working solution.
We are looking forward to hearing from you.
the Telerik team