I'm using a self-baked author.php template on *WordPress 4.6.1* which by default makes an "internal" *WP_Query* (`global $wp_query`, or the so called *main loop*) that gets all posts from a specific author. But I also make another custom *WP_Query* (that I shall call `$secondloop`) that gets custom posts (custom post type) from said author too.

I've also set `posts_per_page` on both loops, and **I want to paginate both**.

`$secondloop` has its `paged` parameter set to the same page as the main loop by adding `"paged" => (get_query_var('paged')) ? get_query_var('paged') : 1;` to my argument array when initializing my `new WP_Query`.

**THE PROBLEM**:

Suppose that `max_num_pages` on both loops is 3. If the *main loop* gives me 5 posts and my `$secondloop` gives me 2, then calling page 2 works without a problem, it shows me the remaining two posts from the *main loop* and none from my `$secondloop` (since `$secondloop->have_posts()`is false, so it doesn't go inside my while loop).

**BUT** if the *main loop* has 2 posts and `$secondloop` has 5, then calling page 2 results in a 404. :(

I obviously want to show the remaining 2 posts from `$secondloop`.

Changing anything inside the author.php template seems to be "too late", because it seems that no PHP code in there is executed any more, once WordPress detects that `max_num_pages` from the *main loop* is exceeded.

How can I "override" that behaviour?