Multiple Classes Bug

Hi,
I think there is a bug in the plugin…

I have 4 courses, each lesson in the course might refer to a number of resouce pages which are relevant to the lesson

So, numerous courses need access to the same resource page.

To reproduce, I have course #1, #2, #3, #4
Pages W, X, Y and Z
All Courses can see Page W
Course #2 and Course #3 can see Page X
Course #2, Course #3 and Course #4 can see Page Y
Only Course #4 can see Page Z

Each page consists of 2 elements an inner section element with text to say “No Access” and the other one being an inner section element with all the Page Content inside

So, for Page Y, I have…
Element 1: “Sorry, you don’t have access” with class “hidden_for_course_2 hidden_for_course_3 hidden_for_course_4”
Element 2: The page content with the opposite class is “visible_for_course_2 visible_for_course_3 visible_for_course_4” (note: they won’t be enrolled in all 3, just one course)

When I test as a user under each course, Element 1 always works, whereas Element 2 is not showing any time