Retrieving Learnpress Categories via Post_Object

I am having trouble figuring out how to show only certain courses on a page using their category. I understand the courses can be accessed based on their category by going to /course-category/<category>, but I need to be able to retrieve the courses dynamically on showing a certain course category to a certain user role.

This is the code I am currently using:

$args = array(
	'posts_per_page'   => 5,
	'offset'           => 0,
	'category'         => '',
	'category_name'    => '',
	'orderby'          => 'date',
	'order'            => 'DESC',
	'include'          => '',
	'exclude'          => '',
	'meta_key'         => '',
	'meta_value'       => '',
	'post_type'        => 'lp_course',
	'post_mime_type'   => '',
	'post_parent'      => '',
	'author'	   => '',
	'author_name'	   => '',
	'post_status'      => 'publish',
	'suppress_filters' => true 
);
$posts_array = get_posts( $args );

This code however does not display the category of the course inside the array. I’ve tried entering the category manually by entering it into both the “category” and “category_name” arguments, but it doesn’t seem to have any effect on what is filtered. Not sure what I am doing wrong, and any help is greatly appreciated. Thanks!