Wordpress Dev Course Unit Still Unavailable


I've enrolled on the WP Dev for Beginners course & I can't access Unit 2. I understand there were problems which caused delays but I have since received an email saying that the unit I'm trying to access should now be available.

It did previously show the sub items - 'Watch video', 'tutorial', etc - for which the links did not work. The links do not now even show.

What's going on?