NGUI 3.5.5 Disappearing Widgets

[jeldrez]

I don't know why, but I just update to the latest version and all my widgets disappear!!
I have to select them on the Hierarchy or click on them (if they have colliders) and they appear then.

What could be?

[ArenMook]

Happens when you don't follow upgrade instructions (in particular starting a new scene step).

Restart Unity.

[jeldrez]

No, I've been updating following the instructions:

• New Scene
• Delete NGUI folder
• Import new NGUI version

But when I start the game the widgets doesn't show properly... well just doesn't show some of them.
I'm currently using 3.0.8f7 and upgrading to the latest 3.5.6.

Any help will be appreciated.

**EDIT**

If from the inspector I deactivate the gameobject and then activate it again it will show.

[ArenMook]

I see no reason for it to happen then. Nothing should just "disappear". Make sure you have only one widget per game object, and make sure there is a panel above the widgets in the hierarchy. Other than that I'm not sure what it may be.