I'm not sure if this is caused by the same bug (should I open a new thread?), but I'll mention it here since it's also scrolling related.
On long strip and wide strip if you click or press left or right, the page number changes but not the page doesn't scroll to the next or previous page. The second time, no matter which direction you click or press, the page scrolls to what you wanted before. This can sometimes skip the last page if you're try to scroll to the next page twice, or the first page if you try to scroll to the previous twice. In practice this means you have to click or press twice every page, and reverse the direction the second input for the last page (or first if you're paging back).
Tested in Chrome and Edge. It's a new bug for me since less than half a day.