Buttons can no longer be immediately pressed while the game window is unfocused

When the game window is unfocused, and then you try to click a button (for example, dressing room), it will only causes the game to regain it's focus and not clicked the button you tried to click, additionally the button does not changes into the hover state when unfocused.

Steps to reproduce:

1. While on Main menu, click you windows taskbar to unfocused the window

2. While the game window is unfocused, hover into dressing room button (or any button)

3. Notice that the button textures isn't changed to the hover one

4. Try clicking it

Expected results:
The game window is focused, and the button is clicked.

Observed results:
Only the game window is focused, nothing happen to the button.