Hello,
I have this structure (UIGrid under a ScrollView, instantiating objects under the UIGrid):
ScrollView
|-UIGrid
|--SomethingWithCollidersLikeAButton(Copy)
|--SomethingWithCollidersLikeAButton(Copy)
[...]
I call NGUITools.AddChild(UIGrid, SomethingWithCollidersLikeAButton). The colliders don't hit -- no matter what I do. I move them in the editor so nothing is over them, change the z-order, change the parent (so it's not even under the UIGrid, or ScrollView, etc.)... nothing. UICamera debug is on and not showing it. Another interesting bit: when I move them, visually they don't move until I disable and re-enable the object.
If I add them to the ScrollView directly, it works. If I add them to anything else then move them (in the editor) to the UIGrid, it works. If it use a UITable instead, it works. So it's probably a bug with the UIGrid. I'm using UITable for now, and my overall setup is pretty complex so it's hard to give a simple example, but hopefully this helps find the bug and warns others who may hit this. I'm on the latest (3.8, but I hit this before updating too, not sure how old).
