The property is disabled, yet I can still control the UIPageLayout pages using the left thumbstick and d-pad on a controller. Not sure how long this has been going on for, it happens both in studio and in-game. Please fix 
PageLayoutBug.rbxl (22.4 KB)
Current workaround: Make all Selectable objects’ NextSelectionLeft and Right properties point to themselves (if you can’t do all, i.e. you are displaying a grid inside a page, only do this for the items on the edge).