Button stack in Rise - need to gate completion on the pressing of each button

Hi all,

I am using Rise 360 to link to a bunch of internal URLs (policies). I have two lessons. The first is a button stack to list and link to the internal web pages. I need the learner to click each button before they can be marked complete. I added a "continue" bar, and changed it such that they couldn't move forward unless all blocks above are complete, and I restricted the course that they have to complete in order.  HOWEVER, the course is allowing learners to move to the next lesson even if they didn't touch every button. What am I doing wrong? Thanks.