Hi Tom
I haven’t switched my live site to GeneratePress yet, but here’s one of my custom templates: http://pastebin.com/pA7yZDqL
This one uses the NS Featured Posts plugin to select specific items to show on the static front page (or falls back to the latest posts and pages), without pagination. But I also get the More button on my other custom template, which lists all the child pages.
I tried removing 'no_found_rows' => true,
in case it was affecting the pagination, but it didn’t make any difference.
I’ve done some more testing: I don’t get a More button on categories and tags that only have one page of posts, or when I load multiple pages of posts until the end. But I do get a More button if I jump straight to the last page, eg /news/page/10/ (where /news/ is my posts page) or /category/books/page/3/. Can you replicate that on yours? It still happens when I activate the parent theme.
If I disable the masonry, I don’t see any pagination on my custom templates, and I get the normal pagination on the last page of the blog archives.
Hope that helps.
Tara