Customized wp_trim_words() perform not trimming proper

I’ve this practice wp_trim_words() perform set to present me excerpts of solely 20 phrases, and for essentially the most half, it really works high-quality. Aside from some purpose, on posts that include lists, it outputs far more than 20 phrases. (See the posts on the backside of this web page.) How can I repair this? I attempted eradicating <ul>,<ol>,<li>, from the perform insight_allowedtags() however that did nothing.

Ideally, I would prefer to make the customized excerpt output not less than 20 phrases and finish on the finish of a sentence no matter whether or not or not the submit incorporates a listing.

That is the customized perform I’m utilizing (as steered on this submit):

// Customized Excerpt for Insights Posts on Insights Web page & Class Pages
perform insight_allowedtags() {
    // Add customized tags to this string
        return '<script>,<model>,<span>,<ul>,<ol>,<li>,<a>,<p>'; 
    }

if ( ! function_exists( 'insight_custom_wp_trim_excerpt' ) ) : 

    perform insight_custom_wp_trim_excerpt($insight_excerpt) {
    world $submit;
    $raw_excerpt = $insight_excerpt;
        if ( '' == $insight_excerpt ) {

            $insight_excerpt = get_the_content('');
            $insight_excerpt = strip_shortcodes( $insight_excerpt );
            $insight_excerpt = apply_filters('the_content', $insight_excerpt);
            $insight_excerpt = str_replace(']]>', ']]&gt;', $insight_excerpt);
            $insight_excerpt = strip_tags($insight_excerpt, insight_allowedtags()); /*IF you'll want to permit simply sure tags. Delete if all tags are allowed */

            //Set the excerpt phrase depend and solely break after sentence is full.
                $excerpt_word_count = 20;
                $excerpt_length = apply_filters('excerpt_length', $excerpt_word_count); 
                $tokens = array();
                $excerptOutput = '';
                $depend = 0;

                // Divide the string into tokens; HTML tags, or phrases, adopted by any whitespace
                preg_match_all('/(<[^>]+>|[^<>s]+)s*/u', $insight_excerpt, $tokens);

                foreach ($tokens[0] as $token) { 

                    if ($depend >= $excerpt_word_count && preg_match('/[,;?.!]s*$/uS', $token)) { 
                    // Restrict reached, proceed till , ; ? . or ! happen on the finish
                        $excerptOutput .= trim($token);
                        break;
                    }

                    // Add phrases to finish sentence
                    $depend++;

                    // Append what's left of the token
                    $excerptOutput .= $token;
                }

            $insight_excerpt = trim(force_balance_tags($excerptOutput));

                // $excerpt_end = ' <a href="'. esc_url( get_permalink() ) . '">' . sprintf(__( 'Learn extra about %s &nbsp;&raquo;', 'wpse' ), get_the_title()) . '</a>'; 
                // $excerpt_more = apply_filters('excerpt_more', ' ' . $excerpt_end); 

                //$pos = strrpos($wpse_excerpt, '</');
                //if ($pos !== false)
                // Inside final HTML tag
                //$wpse_excerpt = substr_replace($wpse_excerpt, $excerpt_end, $pos, 0); /* Add learn extra subsequent to final phrase */
                //else
                // After the content material
                $insight_excerpt .= $excerpt_end; /*Add learn extra in new paragraph */

            return $insight_excerpt;   

        }
        return apply_filters('insight_custom_wp_trim_excerpt', $insight_excerpt, $raw_excerpt);
    }

endif;

remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'wpse_custom_wp_trim_excerpt', 'blog_custom_wp_trim_excerpt', 'event_custom_wp_trim_excerpt', 'insight_custom_wp_trim_excerpt');