Why draft post show on my home page

Question

Unpublished (draft) blog posts are appearing on the homepage when a category is selected But I don't want to show it on my home page.Here is my WP Query

 <div class="wm_container wm_row wm_blog_listing">
        <?php
        $wm_home_blog_args = array(
            'post_type' => 'post',
            'posts_per_page' => 4,
        );
        $wm_home_blog_qry = new WP_Query($wm_home_blog_args);
        if ($wm_home_blog_qry->have_posts()) {
            while ($wm_home_blog_qry->have_posts()) {
                $wm_home_blog_qry->the_post();
                $wm_categories = get_the_category($post->ID);
                $wm_home_term_ID = $wm_categories[0]->term_id;
                $wm_home_blog_bg = get_term_meta($wm_home_term_ID, 'wm_term_color', true);
                ?>
                <article class="wm_col wm_col_3 wm_blog_item"
                         style="background-color: <?php echo $wm_home_blog_bg; ?>">
                    <?php
                    if (has_post_thumbnail()) {
                        ?>
                        <a class="wm_post_thumbnail_wrapper" href="<?php the_permalink() ?>">
                            <?php
                            the_post_thumbnail('wm_recent_issue_cat');
                            ?>
                            <span class="wm_image_overlay">Preview</span>
                        </a>
                        <?php
                    } else {
                        ?>
                        <a class="wm_post_thumbnail_wrapper" href="<?php the_permalink() ?>">
                            <img src="http://placehold.it/255x135?text=No+Image">
                            <span class="wm_image_overlay">Preview</span>
                        </a>
                        <?php
                    }
                    ?>

Answer 1

post_status (string / array) - use post status. Retrieves posts by Post Status. Default value is 'publish', but if the user is logged in, 'private' is added. Public custom statuses are also included by default. And if the query is run in an admin context (administration area or AJAX call), protected statuses are added too. By default protected statuses are 'future', 'draft' and 'pending'.

https://codex.wordpress.org/Class_Reference/WP_Query#Status_Parameters

Answer 2

Pass Post Status parameter in array

$wm_home_blog_args = array(
            'post_type' => 'post',
            'posts_per_page' => 4,
            'post_status' => 'publish',  
        );

I hope this will work for you.