Free: 10 Tab Interactions - Storyline 360

Hi Sarah!  I know this discussion is over a year old, but I just found your tab interactions file and have been playing around with it to customize for my project.  I'm using interaction 10 (which is my favorite) but I seem to be having a bit of trouble with the icons.  I've swapped out the icons for ones that are relevant to my content, but when I do that (and leave everything else the same) and click to jump to a layer, the icons on the base slide don't 'disappear'  from the base slide any more.  I tried to deconstruct your design and am befuddled - I just can't figure it out!  I feel like it has something to do with the transparent circle you have over the icon, but even when I copy/paste it over my icon it doesn't work.  Is it the icon style?  Mine are a group of of free form shapes rather than one single shape.  Any help you can provide would be greatly appreciated!  I'm determined to use your example :)