Filter the_excpert to allow html tags used by YASR shortcodes, basede on https://wordpress.stackexchange.com/a/141136/48442

functions.php

<?php 

remove_filter('get_the_excerpt', 'wp_trim_excerpt');
add_filter('get_the_excerpt', 'yasr_custom_wp_trim_excerpt');

function yasr_excerpt_allowedtags() {
    // Add custom tags to show yasr_visitor_votes
    return '<div>,<svg>,<span>,<path>';
}

if (!function_exists('yasr_custom_wp_trim_excerpt')) {

    function yasr_custom_wp_trim_excerpt($wpse_excerpt) {
        $raw_excerpt = $wpse_excerpt;
        if ('' == $wpse_excerpt) {

            $wpse_excerpt = get_the_content('');
            $wpse_excerpt = strip_shortcodes($wpse_excerpt);
            $wpse_excerpt = apply_filters('the_content', $wpse_excerpt);
            $wpse_excerpt = str_replace(']]>', ']]&gt;', $wpse_excerpt);
            /*IF you need to allow just certain tags. Delete if all tags are allowed */
            $wpse_excerpt = strip_tags($wpse_excerpt, yasr_excerpt_allowedtags());

            //Set the excerpt word count and only break after sentence is complete.
            $excerpt_word_count = 75;
            $excerpt_length     = apply_filters('excerpt_length', $excerpt_word_count);
            $tokens             = array();
            $excerptOutput      = '';
            $count              = 0;

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

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

                if ($count >= $excerpt_length && preg_match('/[\,\;\?\.\!]\s*$/uS', $token)) {
                    // Limit reached, continue until , ; ? . or ! occur at the end
                    $excerptOutput .= trim($token);
                    break;
                }

                // Add words to complete sentence
                $count++;

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

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

            if ($count >= $excerpt_word_count) {

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

                //$pos = strrpos($wpse_excerpt, '</');
                //if ($pos !== false)
                // Inside last HTML tag
                //$wpse_excerpt = substr_replace($wpse_excerpt, $excerpt_end, $pos, 0); /* Add read more next to last word */
                //else
                // After the content
                $wpse_excerpt .= $excerpt_more; /*Add read more in new paragraph */
            }

            return $wpse_excerpt;

        }
        return apply_filters('yasr_custom_wp_trim_excerpt', $wpse_excerpt, $raw_excerpt);
    }

}