Player pause button does not pause all slide layers

I have searched through several related threads and no one seems to be asking this exact question.

When a user clicks the pause button beside the seekbar while more than one slide layer is visible, ONLY THE CURRENT / TOPMOST LAYER PAUSES. The layers below will continue to play their video, animation, audio, etc.

At best, it confuses the learner, and at worst it makes an awful out-of-sync ruckus when unpaused.

Maybe I'm doing something wrong.

What I want is for everything currently happening on the slide to pause when a user clicks the player pause button (and have everything scrub when a user scrubs the seekbar).

How do I accomplish this?

I cannot post the project due to sensitive information, but here is my attempt at demonstrating how my slide / timeline is set up:

                    •-----------x-------------•
                    LAYER 2 (ANIM. OVERLAY W/AUDIO)
              •-----------------------------------------y---•
              LAYER 1 (SCREEN CAPTURE VIDEO AND AUDIO)
•-------------•
BASE TIMELINE (INTRO)

If I pause when the timeline is at  x  (while the slide is showing LAYER 2), only the animated overlay and audio will pause. The layer below with the screen capture video will continue.

If I pause when the timeline is at  y  (while showing only LAYER 1), then the video and audio pause as expected.

It is so frustrating because I can not see a need to ever pause only the topmost slide layer. It just seems like the default functionality should be to pause everything when a user clicks a pause button.

Thanks in advance,

Bart