Course image not visible in order status page

I am buying a coursepress course with marketpress and in the cart and checkout I see the image (picture 1) but after I finish the order and see the order status page, there is no image (picture 2).
I have tested this in two wordpress instalations and with like 5 different themes.
You can see it in action on the subsite /nikolaytest4/wp-admin/. I have granted support access.