EDIT: The bug finally resolved in iOS 11.0!!
bug in horizontal collection view
When you have a collection view, that scrolls horizontally, and you use "scrollToItemAtIndexPath", it works when your environment is a LeftToRight language But it takes you to the wrong cell when the environment is RightToLeft..
As a workaround, you can set the semantic of the collection view to ForceLeftToRight.. But then the direction of the scroll changes.... Very bad for RTL layout