Thank you for writing.
I was not able to observe the described behavior. I would kindly ask you to send me a sample project which reproduces the issue. This will let me investigate it and provide you with further support. You can open a new support ticket to attach the project or you can use your previous thread "Selecting Values Throws NullReferenceException" which I have converted to a support ticket.
Looking forward to hearing from you.
All the best,
the Telerik team