Unity 4.6 ui scroll rect won't show up in fullscreen

I have a game object inside a canvas with a scroll rect, empty image and mask components. The child of this object is an empty game object containing buttons for changing resolution as children. They are procedurally generated according to the Screen.resolutions array.

When I have the game in standalone fullscreen, the whole menu disappears as I select any resolution other than my native one (the biggest one). However, when I am in the editor or standalone windowed, it works like a charm at all resolutions supported.

Any ideas?

The new GUI system has some strange scaling differences (that I have noticed) between the editor and the game view. Things that may show up in editor / game view / .exe application may not be visible in others. Perhaps you could try using a smaller scaling or positioning of the GUI elements and see if that makes any difference.