Thank you for contacting us.
I have tried to reproduce the issue by following the described steps but to no avail. I am attaching a short video to demonstrate my attempts. There might be something specific in your implementation which I am missing. Therefore, I would kindly ask you to open a new support ticket and attach a sample project which demonstrates the issue. This will let me investigate it and provide you with further support.
Looking forward to hearing from you.
All the best,
the Telerik team