Hi,
Not doing anything extraordinary. Debugging on a Win 8.1 desktop, clicking a radio button in the group, first time only. Once any button in the group is clicked and the focus rectangle appears, changing choice by clicking another radio button in the group does not produce a focus rectangle. Odd behavior?
I did have some success at least getting that first focus rectangle to display as centered over the button by going into the component's locked skins and deleting all states' focus rectangle skins. Doesn't prevent it from appearing as noted above, but the focus rectangle is now centered instead of off to the side. Label setting in component is "top".