Storyline layers not appearing on some tablets

I have a navigation tutorial where our new learners have to click the red boxes to learn about the navigation controls for their device. When the learner clicks on a box, the box outline turns green and a layer appears with a pop-up description.  Once they have clicked on all the boxes and they've turned green, a green box pops up saying you can proceed (because the next button is now enabled). 

When the course is previewed in Review on my testing tablet it works as expected. However, once the course is uploaded into our (Absorb) LMS I don't see the layers pop up. The box outlines change from red to green but there's no informational box showing. 

Our trainings are done on tablets and my tablet is acting different than my boss' tablet. It's the same type of device (Lenovo tablet), same LMS (it's a Tin Can file), same course - but the layers just don't show up on mine. It works just fine on the boss' tablet. 

We're rolling out training next week and I'm concerned about the inconsistent functionality of this tutorial and the possibility that some of our locations may have a tablet that acts like mine - adding no value to the navigation tutorial.

Any ideas what could be causing these different experiences?