Version 2.19.6 breaking Site

Hi,

the latest Update Version 2.19.6 breaks my site…

1: All “Buttons” which had an empty color had the link/text color from the theme before. Since the update they are transparent? No big issue, as i restyled them, but maybe worth a notice.

2: Even bigger problem: i have a page with team members built up from a custom post type “team” (each team member has a title, some text on mouseover coming from content and a post image). After the update the page doesn’t count as a page anymore but obviously as an archive which is displayed in blog style with pagination and stuff. Other sites have the body class “page”, this one (even if it is a page) suddenly has the body class “archive” now??? I am using a custom shortcode [team_grid] via my functions.php, which is not working anymore at all… instead the whole content from the page is being ignored as it get’s treated like an archive???

function team_grid_shortcode($atts) {
    ob_start(); 
    
    $atts = shortcode_atts(array(
        'columns' => 4,
    ), $atts, 'team_grid');

    $columns = intval($atts['columns']);
    if ($columns < 4 || $columns > 6) {
        $columns = 4;
    }

    $query = new WP_Query(array(
        'post_type'      => 'team',
        'posts_per_page' => -1,
        'order'          => 'ASC',
    ));

    if (!$query->have_posts()) {
        return '<p>Keine Teammitglieder gefunden.</p>';
    }

    echo '<div class="team-grid columns-' . $columns . '">';
    
    while ($query->have_posts()) {
        $query->the_post();
        $image = get_the_post_thumbnail(get_the_ID(), 'full');
        $name = get_the_title();
        $bio = get_the_content(); 

        echo '<div class="team-member">';
        if ($image) {
            echo '<div class="team-image">';
            echo $image;
            echo '<div class="team-overlay">';
            echo '<div class="team-content">' . wpautop($bio) . '</div>';
            echo '</div>';
            echo '</div>';
        }
        echo '<h2>' . $name . '</h2>';
        echo '</div>';
    }

    echo '</div>';

    wp_reset_postdata();

    return trim(preg_replace('/\s+/', ' ', ob_get_clean())); 
}
add_shortcode('team_grid', 'team_grid_shortcode');

Could you provide help? Seems to be a bug!

best regards