Like the title says Single Category Posts (B) widget’s featured images are not clickable. I’m afraid some users will not think to click the post title. Single Category Posts © has clickable images.
I did manage to temporarily fix it by changing widget-single-category-posts-b.php line 55 to:
<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail(); ?></a>
and line 68 to:
<div class="media-object"><a href="<?php the_permalink(); ?>"><?php the_post_thumbnail('greatmag-extra-small'); ?></a></div>
Unfortunately I had to edit the parent theme files so I know it will be overwritten once the theme updates.
Is there a way to make this permanent or can I make it a feature request?