Some controls couldn't be focused by mouse or keyboard

2) How can we reproduce it using the example you attached

1. Dbl-click on the "start" scene
2. Press Run
3. Mouse click on each control in GUI (include "Unity Areas " box and "Window" window)
==>
Title of the button (in "Window") should be the same as the name of focused control

Actual result: Only for TextFiled, PasswordField and TextArea could be focused by mouse

P.S: You couldn't focus Toggle by mouse (click ) or keyboard (Tab)
[Win7 x64]

More investigations: If you click on button you will focus Toggle button (name is "Switch") via code (try to use keyboard to change state of Toggle button) but you will fail to focus it via mouse or keyboard