WARNING: Serious accessibility issue in latest SL release 3.88.32474.0
Note: I have reported this issue to Articulate, Case # 00861779
If building screen reader accessible content for JAWS, I would recommend rolling back to any version prior to 3.88.32474.0
The issue is with using layers as dialogue boxes/modal window and returning screen reader focus back to the element that showed a layer, when the layer is closed.
For example, you select a button which opens a layer. The layer is set to be exclusive and users cannot interact with elements behind the layer (like a pop-up window). When the Hide Layer trigger is called, the expected behaviour is that the screen reader reading focus is returned to the element that trigger the Show Layer.
This is not the current behaviour. The screen reader focus is returned to the top of the slide each time.