Visitors can't see Woo Commerce Shop Products

I just discovered another possible bug in the Protected Content Plugin which I have been working with extensively over the last few days.

I cannot get visitors to see my Woo Commerce Products - they can see the Shop Categories but not the actual products. A bug? Has anyone else experienced this or is it just me? What I was hoping to set up was for visitors to be able to see the [downloadable] products but not actually obtain before becoming members. I managed to "protect" the checkout part successfully but then in testing found out that visitors can't actually see the products.

Thank you
Lesley