Could you please let us know what version of our controls do you use? Although, I would suggest you to try our latest internal build and let me know if you still have issues with RadTransitionControl.
I will be glad to assist you further.
All the best,
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