wordliner

Hello. Thx for response. I Added breadcrumb manualy to the header with function <?php ntx_mag_breadcrumb(); ?> Thanks to that breadcrumb displays evrywhere, try search page, try 404, try category. Evrything works except single post page. When i delete this function cover image from post page dissapears.

So i am guessing this function has been responsible for bug.

function ntx_mag_breadcrumb(){

    $post_id = get_the_ID();

    $post_template = get_post_meta($post_id, '_wp_page_template', true);

    $except = array(
        'page-home.php',
        'page-vc-page.php'
    );

    if(!in_array($post_template, $except)){

        if( is_page() ){
            ?>
            <section class="int-header">
                <div class="container">
                    <div class="row">
                        <div class="col-xs-12">
                            <h4><?php echo strtoupper(esc_html(get_the_title())) ?></h4>
                            <div class="breadcrumb <?php echo esc_attr(mag_ntx_custom_background_for_breadcrumb()) ?>" typeof="BreadcrumbList" vocab="http://schema.org/">
                                <?php if(function_exists('bcn_display'))
                                {
                                    bcn_display();
                                }?>
                            </div>
                        </div>
                        <!-- end col-12 -->
                    </div>
                    <!-- end row -->
                </div>
                <!-- end container -->
            </section>
            <!-- end int-header -->
            <?php
        }
        else{
            ?>
            <section class="article-header article-bg <?php echo (is_single())? 'banner-single': '' ?>">
                <?php
                if(!is_single()){
                    ?>
                    <div class="container article-header-content">
                        <div class="row">
                            <div class="col-xs-12">
                                <div class="breadcrumbs <?php echo esc_attr(mag_ntx_custom_background_for_breadcrumb()) ?>" typeof="BreadcrumbList" vocab="http://schema.org/">
                                    <?php
                                    if(function_exists('bcn_display'))
                                    {
                                        bcn_display();
                                    }else{

                                        // Default homepage: which is both front page and blog post
                                        if(is_home() && is_front_page()){
                                            ?>
                                            <h4><?php echo strtoupper(esc_html__('Blog', 'mag')) ?></h4>
                                            <?php
                                        }

                                        if(is_archive()){
                                            ?>
                                            <h4><?php echo strtoupper(get_the_archive_title()); ?></h4>
                                            <?php
                                        }

                                    }
                                    ?>
                                </div>
                            </div>
                            <!-- end col-12 -->
                        </div>
                        <!-- end row -->
                    </div>
                    <?php
                }
                ?>
                <!-- end container -->
            </section>
            <?php
        }

    }

}

I read that peopole had similiar problem with single post with some frameworks and some custom post classes.

I also tried to edit breadcrumb trail. No luck.

Plase help.
Best Regards
Kamil