I’m trying to display three different queries with same post type, taxonomy, post__in argument and different taxonomy term for each of them. Thing is, that first query return posts without a problem, but other two not at all.

This is the first time i have encountered something like that and i’m completely at loss here.

The idea is:
To filter each query by specific terms from custom taxonomy and by list of specified ID’s from array.

Things i have tried:

• switching to meta_query instead of “post__in” argument,
• giving slugs to tax_query field instead of ID’s

Additional infos:

• The $tm_specs returns serialized array, so it’s the proper source
• If i just remove first query whatsoever, then the other two still not renders.

The weird thing is that if i remove either tax_query or post__in from the second or third query then it renders properly.

I would really appreciate any help in that matter.

The code:

$ts_args = array(
    'post_type' => 'specjalizacja',
    'posts_per_page' => -1,
    'post__in' => $tm_specs,
    'tax_query' => array(
        array(
            'taxonomy' => 'kategoria',
            'field' => 'ID',
            'terms' =>  2,
        ),
    ),
);
$ts_loop = new WP_Query($ts_args);

$fy_args = array(
    'post_type' => 'specjalizacja',
    'posts_per_page' => -1,
    'post__in' => $tm_specs,
    'tax_query' => array(
        array(
            'taxonomy' => 'kategoria',
            'field' => 'ID',
            'terms' =>  3,
        ),
    ),
);
$fy_loop = new WP_Query($fy_args);

$dtb_args = array(
    'post_type' => 'specjalizacja',
    'posts_per_page' => -1,
    'post__in' => $tm_specs,
    'tax_query' => array(
        array(
            'taxonomy' => 'kategoria',
            'field' => 'ID',
            'terms' =>  4,
        ),
    ),
);
$dtb_loop = new WP_Query($dtb_args);

<?php while ( $ts_loop->have_posts() ) {
    $ts_loop->the_post();
        echo '<a href="'.get_the_permalink().'" class="bordered-btn-big"><span>'.get_the_title().'</span></a>';
} wp_reset_postdata(); ?>

<?php while ( $fy_loop->have_posts() ) {
    $fy_loop->the_post();
        echo '<li class="bordered-btn"><a href="'.get_the_permalink().'"><span>'.get_the_title().'</span></a></li>';
} wp_reset_postdata(); ?>

<?php while ( $dtb_loop->have_posts() ) {
    $dtb_loop->the_post();
            echo '<li class="bordered-btn"><a href="'.get_the_permalink().'"><span>'.get_the_title().'</span></a></li>';
} wp_reset_postdata(); ?>