I have 3 UIButton instances in a horizontal UIStackView.
I get the focus on the first one. But when I swipe to the right, the next button does not get focus...
tvOS: Cannot focus on all the buttons in a UIStackView
You can use debug view hierarchy to check if there is any view is covering your stack view. For me, the stack view was covered by navigationController, I hide it and the issue gone :)). Good luck!
navigationController?.setNavigationBarHidden(true, animated: false)