Coursepress course_list shortcode

Hi im using the shortcode [course_list] and it works fine except when i try to assing a class to the whole list, look at my code:
[course_list show="" show_button="no" show_media="yes" limit="6" title_tag="" course_class="uk-width-1-3" class="uk-flex uk-flex-wrap-space-between"]
The course_class atribute is working normally but the class atribute doesnt work
This is what i get on my div class="course-list %s"

Looking at the plugin code i found that it is not calling the $class atribute on course_list shortcode function.
Im using Wordpress 4.6 and Coursepress PRO 1.3.4.2