Additionally (if this helps), the page on which the issue is occurring (https://nandinahome.com/design-tips) is a Custom Post Type generated from the Theme Functions using the following code:
/* Videos */
register_post_type( 'design_tips',
array(
'labels' => array(
'name' => __( 'Design Tips' ),
'singular_name' => __( 'Design Tip' )
),
'public' => true,
'has_archive' => true,
'menu_position' => 5
)
);
This code then somehow sources the thumbnails and reference links from the posts that are posted in the Custom Post Type.