Dumdum
I get to the first quick tile menu by swiping down twice from the top right of the home screen. From there I cannot get to the second screen of quick tiles.
After editing to add more tiles, I exit via the "Exit" button at the top left. When back on the quick tile screen, I do not see the additional tiles I tried to add. They should be on a second quick tile screen as each screen holds only 8 quick tiles. But I cannot get to that second screen.
In my previous comment I tried to ask whether I was doing something wrong exiting the edit menu. If so, and if the additional quick tiles never got added, then I could understand why there was no second screen to which to navigate. But then why are there 2 dots below the 8 quick tiles on the first screen?