Can not click on Button

[oleksii]

Hi,
I use Scroll component, and have next hierarchy:

ScrollableArea
-Content
--Item1
--item2

I use boxCollider on ScrollableArea for move scroll used mouse...
My items have next hierarchy:

item (with only "ItemScript")
-standard with UI Item (use like button)

-expanded
--button1
--button2

On all buttons "child on another UIItem" is ON, but they still not works...
I try add UIItem for my item component but it not help...