I just updated to Unity 5.3, and I noticed that this “sample” doesn’t work anymore (it does on the lastest 5.2).
Create an empty project and import the asset Unity Asset Store - The Best Assets for Game Making
Load the Menu3D scene.
Switch to 2D view.
where’s the menu?
now, add a new ui element inside the canvas. Ops! The menu is still there! Now it is visible.
select the ui element that you have added, disable it… Ops! Where’s the menu???
any idea? (I just sent a bug notification…)