Interactive Video

I am using interactive video within a wordpress Elementor tab widget.

The problem: when I move from tab 1 to tab 2 the video does not show (until I press the "embed" button and then it shows).

in each tab I have added an iframe containing the H5P and the relevant JS:

We have a student who is visually impaired and uses a screen reader to have everything read to him.  The interactive video quiz has a speaker icon on it, but it does not speak the choices.  Is there a trick to get that activated?  I tried the built in OS voice over for Mac and it reads the question, but not the answer choices.

Issue with interactive video.

There are two ways to reproduce this issue:

- duplicate an hp5 activity having a working interactive video. The new activity will not work and will show the "Video source is missing." message.
- create a new activity. Even when you use a youtube video which is fully operational in another h5p activity, the player still shows the "Video source is missing." message.

Other findings: