Brilliant, thank you. In case you haven’t figured out the reason for number 2 – it looks like each page can only have the number of posts entered in the Query section. So if there are 13 entries with 10 posts per page, you can never see the last page because it can’t display only 3 posts on a page.
And I discovered that it was the Ajax option that prevents pages from working. With that option switched off it worked.
Looking forward to the update!