Post Image disappears in [recent_posts] shortcode

I have just set a featured image for my blog posts but they are not being shown when I use the following shortcode:

[recent_posts category=”smc” order=”DESC” columns=”1″ count=”10″ show_title_icon=”no” show_media=”yes” show_date=”yes” show_categories=”no” show_read_more=”no” show_author=”no” show_tags=”no” show_comments=”no” slideshow=”yes” animation=”slide” navigation=”yes” autoslide=”yes” interval=”6″]

The page which contains this code can be seen here: https://www.mutechops.com/smc/