Child theme single.php isn't being applied to multisite install

Hi - I have a site that I just moved from a standalone WordPress install (all working great) to a multisite install. In the multisite version, the single.php file in the Child Theme is not being applied. I've tried to troubleshoot to see if there is some type of path that is wrong to cause it not to be applied, but I can't see any. Like I said, it works great on straight up WordPress, but I'm not sure what the problem is now that I've moved it over to a multisite install. Here is the code for the single.php: `<?php
/**
* Template for displaying single article
*/

get_header();

the_post();

eqfw_update_post_views();

?>

<section class="main-content is-single <?php echo get_theme_mod( 'post_layout', 'without-sidebar' ); ?>" role="main">

<article id="post-<?php the_ID(); ?>" <?php post_class( 'article' ); ?>>

<!-- Title -->
<div class="breadcrumbs">
<?php if(function_exists('bcn_display'))
{
bcn_display();
}?>
</div>
<h1 class="article_title is-main">
<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
</h1>

<!-- Featured image -->
<?php if ( has_post_thumbnail() && get_theme_mod( 'post_layout') != 'without-sidebar' ): ?>
<div class="article_featured-image">
<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail( 'article-full' ); ?></a>
</div>
<?php endif; ?>

<!-- Summary -->
<div class="article_summary">

<!-- Excerpt -->
<?php if ( get_the_excerpt() ): ?>
<div class="article_excerpt">
<?php the_excerpt(); ?>
</div>
<?php endif; ?>

<!-- Meta -->
<?php get_template_part( 'inc/article-meta' ); ?>

</div>

<!-- Content -->
<div class="article_content with-sidebar">
<?php the_content(); ?>

<!-- Comments -->
<?php if ( get_theme_mod( 'post_layout', 'without-sidebar' ) == 'without-sidebar' ): ?>
<?php comments_template(); ?>
<?php endif; ?>

</div>

<?php /********** COMMENTING OUT THE ARTICLE SIDEBAR ?>
<!-- Article sidebar -->
<div class="article_sidebar sidebar">

<!-- Rating -->
<?php
$ratings = get_post_meta( get_the_ID(), 'report_rating_json', true );
$ratings = json_decode( $ratings );
?>
<?php if ( is_array( $ratings ) ): ?>
<div class="article_sidebar_item">
<h3 class="article_sidebar_title"><?php _e( 'Rating', 'eqfw' ); ?></h3>
<ul class="article_rating">
<?php foreach ( $ratings as $rating ): ?>
<li>
<span class="article_rating_value"><?php echo eqfw_format_rating( $rating->rating ); ?></span>
<h3><?php echo $rating->label; ?></h3>
<?php if ( $rating->description ): ?><p><?php echo $rating->description; ?></p><?php endif; ?>
<div class="article_rating_visualization"><div style="width:<?php echo eqfw_rating_to_percentage( $rating->rating ); ?>%;"></div></div>
</li>
<?php endforeach; ?>
</ul>
</div>
<?php endif; ?>

<!-- Author bio -->
<?php if ( get_the_author_meta( 'description' ) ): ?>
<div class="article_sidebar_item article_sidebar_author">

<h3 class="article_sidebar_title"><?php _e( 'About author', 'eqfw' ); ?></h3>

<!-- Description -->
<p><?php the_author_meta( 'description' ); ?></p>

</div>
<?php endif; ?>

<!-- More in the same category -->
<?php $categories = get_the_category(); ?>
<?php if ( get_theme_mod( 'post_categories' ) && count( $categories ) > 0 ): ?>
<div class="article_sidebar_item">
<h3 class="article_sidebar_title"><?php echo __( 'In ', 'eqfw') . $categories[0]->name; ?></h3>
<?php
the_widget( 'Report_Widget_Post_List', array(
'style' => 'small',
'number' => 7,
'category' => false,
'category_id' => $categories[0]->term_id,
'title' => '',
'tag' => false,
'additional_parameters' => '',
'additional_args' => '',
'before_title' => '<div class="hide-title">',
'after_title' => '</div>'
) );
?>
</div>
<?php endif; ?>

<!-- Share -->
<?php if ( get_theme_mod( 'post_share' ) && get_theme_mod( 'post_share' ) != '[]' ): ?>
<div class="article_sidebar_item">
<h3 class="article_sidebar_title"><?php _e( 'Share', 'eqfw'); ?></h3>
<?php

$links = array();
the_widget( 'Report_Widget_Social_Links', array(
'title' => '',
'links' => get_theme_mod( 'post_share' )
) );
?>
</div>
<?php endif; ?>

</div>
<?php COMMENTING OUT THE ARTICLE SIDEBAR *************/ ?>

<div class="clearfix"></div>

<!-- Paginated post nav -->
<?php
wp_link_pages( array(
'before' => '<div class="link-pages">',
'after' => '</div>'
) );
?>

<!-- Comments -->
<?php if ( get_theme_mod( 'post_layout', 'without-sidebar' ) == 'with-sidebar' ): ?>
<?php comments_template(); ?>
<?php endif; ?>

</article>

</section>

<?php if ( get_theme_mod( 'post_layout', 'without-sidebar' ) == 'with-sidebar' ): ?>
<div class="sidebar-wrapper">
<ul class="sidebar">
<?php dynamic_sidebar( 'sidebar-1' ); ?>
</ul>
</div>
<?php endif; ?>

<div class="clearfix"></div>

<!-- More in the same category -->
<?php if ( get_theme_mod( 'post_after_category' ) ): ?>
<?php foreach ( get_the_category() as $category ): ?>
<?php
$query = new WP_Query( 'cat=' . $category->term_id );
if ( $query->found_posts == 1 ) continue;
?>
<div class="similar-posts">
<h3 class="similar-posts_title"><?php echo __( 'More in ', 'eqfw') . $category->name; ?></h3>
<?php
the_widget( 'Report_Widget_Post_List', array(
'style' => 'small',
'number' => 5,
'category' => false,
'category_id' => $category->term_id,
'title' => '',
'tag' => false,
'additional_parameters' => false,
'additional_args' => array(
'post__not_in' => array( get_the_ID() )
)
), array(
'before_title' => '<div class="hide-title">',
'after_title' => '</div>'
) );
?>
</div>
<?php endforeach; ?>
<?php endif; ?>

<!-- Most popular -->
<?php if ( get_theme_mod( 'post_after_popular' ) ): ?>
<?php foreach ( get_the_category() as $category ): ?>
<div class="similar-posts">
<h3 class="similar-posts_title"><?php _e( 'Most popular', 'eqfw'); ?></h3>

<?php
the_widget( 'Report_Widget_Post_List', array(
'style' => 'small',
'number' => 5,
'category' => false,
'title' => '',
'tag' => false,
'show_categories' => 'on',
'additional_parameters' => '',
'additional_args' => array(
'orderby' => 'meta_value_num',
'meta_key' => 'post_views_count',
'order' => 'DESC',
// 'date_query' => array( array( 'after' => '-30 days' ) ),
'post__not_in' => array( get_the_ID() )
)
), array(
'before_title' => '<div class="hide-title">',
'after_title' => '</div>'
) );
?>
</div>
<?php endforeach; ?>
<?php endif; ?>

<?php get_footer(); ?>`