UIPageControl width is incorrect for iOS 13

[mjenj]

I have an image slideshow with 17 images, when viewed on an iOS 14 device the pagination works as expected, when viewed on a 13 device the last pages are not visible and there is no shrinking of the page indicators. See attached video.

I create the UIPageControl like so

let pageIndicator = UIPageControl()
pageIndicator.currentPageIndicatorTintColor = UIColor.black
pageIndicator.pageIndicatorTintColor = UIColor.lightGray

Please advise if this is a mistake of mine or if theres some other issue.

pagination.bug.mov