The Color Picker in the Material Editor doesn't pick colors from windows outside of the editor anymore

The Color Picker/Eye Dropper in the Material Editor doesn't register colors from any windows outside of the editor anymore.

Changelist #2337679 (Not working here of any changelist created after it)
Changelist #2323471 (Working)

1. Open QA-Game
2. Open any standard material
3. Hold the number 3 and click in the Event Graph to create Constant 3
4. In the Details panel, pick the color bar
5. Once the Color menu pops up, click the Eye Dropper icon
6. Hover over various colors in the editor then pick a color
7. Try hovering over various colors in other windows (Internet Browser, etc)
8. The Color Picker will not register any colors in any other windows except the editor