The Grouping of ANDs and ORs

I have a very interesting challenge.  I want my story to jump to a slide based on the following conditions -> someone from either Marketing or Finance views all 3 videos.  All variables are working fine.

So, in Storyline 1, the conditions to jump to the slide look like this:

video1==true

AND video2==true

AND video3 == true

AND Department==Finance

OR Department==Marketing

Unfortunately, if the person is from Marketing and they have watched all the videos, it doesn't jump to that slide.  Someone from Finance though will move to that slide when the button is clicked.  

Can anyone shed some light on this logic dilemma?   Thanks....