In our online demo which shows the integration of RadScheduler and RadToolTip and can be found here
, the RadToolTip has its Sticky property set to true.
Would you please try to reproduce the described problem on it? In case you succeed, please send me a detailed explanation of the reproduction steps and the observed behavior.
In case you are not able to reproduce the problem on the online example, please open a new support ticket and send me a sample, fully runnable reproduction project, explanation of the reproduction steps and some screenshots. Once I am able to examine the problem locally, I will do my best to help.
the Telerik team