Hello Steve,
We are not aware of such existing issues in the RadTabControl from Q2. It it possible for you to test your app first with the SP1 dlls 0920 and see of the problems are still reproducible? If yes, then you can send us your XAML so that we would be better able to investigate this in depth. Thank you for your cooperation in advance.
Best wishes,
Petar Mladenov
the Telerik team
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