Xcode 10 Arabic (RTL) Storyboard is not working.

I have multi-language enabled in my project. In previous xcode versions it was working perfect but in new Xcode 10. Arabic storyboard is not loading instead of views its only loading the Arabic text in LTR views.
I don't now if its due to the change in New Localization Pattern introduced in Xcode 10? Or is it a bug in new xcode?