We have not met similar problem on our side so far. Could you give us a stack trace of the exception, as from the information you have given us so far, it is not possible for us to make the conclusion about the cause of this problem.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items