Storyline Interactions in Rise having black mobile player

I agree, this update would be very useful for the platform I am using for our learners.  I have used Storyline 360 in Rise so our learners can take notes, but if they are on a mobile device, they get the play button instead of the notecard.  They simply have to click on the play button and the note sections starts.

Also, I am getting learners that when they are using storyline 360 in Rise, sometimes the advance button is not working properly.  I have four note slides in each of our sessions for the learner to take notes.  Sometimes when they get to the third notecard it goes previous instead of next.  But, other learners are not experiencing the complication in the exact same session.  Any thoughts of what I could look for to make this experience the same for all our learners?