Hi Kenneth Jackson,
Thank you for this question.
I was not able to reproduce any issues regarding RadScreenTips. They were shown correctly for the RadRibbonBar elements as well as for the external controls. In addition, the ScreenTipNeeded event handler's arguments returned correct values. I am attaching a sample application which demonstrates the correct behavior.
If you continue experiencing any issues, please open a new support ticket and send me a sample project. This will allow me to assist you further.
All the best,
the Telerik team
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