Have you tried adding the following before the main args and the loop?

<!-- Modify pagination function for front page -->
<?php
global $paged, $wp_query, $wp;
$args = wp_parse_args($wp->matched_query);
if ( !empty ( $args['paged'] ) && 0 == $paged ) {
$wp_query->set('paged', $args['paged']);
$paged = $args['paged']; } ?>

Then add the pagination like so:

<?php
$query = array(
'posts_per_page' => 12,
'paged' => $paged ); ?>

<?php if ($query->have_posts()) : $i = 1; ?>

Have you tried adding the following before the main args and the loop?

<!-- Modify pagination function for front page -->
<?php
global $paged, $wp_query, $wp;
$args = wp_parse_args($wp->matched_query);
if ( !empty ( $args['paged'] ) && 0 == $paged ) {
$wp_query->set('paged', $args['paged']);
$paged = $args['paged']; } ?>

Then add the pagination like so:

<?php
$args = array(
'posts_per_page' => 12,
'paged' => $paged ); ?>

$query = new WP_Query($args);

<?php if ($query->have_posts()) : $i = 1; ?>

<?php while ( $query->have_posts() ) : $query->the_post(); ?>

// Content Here

<?php $i++; endwhile; ?>
<?php else : ?>
<h2>Content not found!</h2>
<?php endif; ?>

//pagination code

In my case I am using WP pagenavi, so I would use:

<?php wp_pagenavi( array( 'query' => $query )); ?>
<?php wp_reset_query(); ?>

Have you tried adding the following before the main args and the loop?

<!-- Modify pagination function for front page -->
<?php
global $paged, $wp_query, $wp;
$args = wp_parse_args($wp->matched_query);
if ( !empty ( $args['paged'] ) && 0 == $paged ) {
$wp_query->set('paged', $args['paged']);
$paged = $args['paged']; } ?>

Then add the pagination like so:

<?php
$product_args = array(
'posts_per_page' => 12,
'paged' => $paged ); ?>

Have you tried adding the following before the main args and the loop?

<!-- Modify pagination function for front page -->
<?php
global $paged, $wp_query, $wp;
$args = wp_parse_args($wp->matched_query);
if ( !empty ( $args['paged'] ) && 0 == $paged ) {
$wp_query->set('paged', $args['paged']);
$paged = $args['paged']; } ?>

Then add the pagination like so:

<?php
$query = array(
'posts_per_page' => 12,
'paged' => $paged ); ?>

<?php if ($query->have_posts()) : $i = 1; ?>