Storyline 360 - Tab order resets when a slide layer is shown or hidden.

To follow up on my last post:

My NVDA was a 2019 version, so I updated it to 2020.1; however, I'm still encountering the same behavior in Chrome (83) as described previously, and now NVDA won't read anything in FF.

I have two versions of JAWS: 2018.1811.30 and 2020.2004.66. The 2018 version produced the same results as both versions of NVDA in Chrome and didn't work in FF. The 2020 version is now working in FF and producing identical results in Chrome and FF, but those results differ slightly from what I described in my original post: the screen reader reading order (using the arrow keys) is still deviating from the Tab Order when I hide a layer or fire any sort of "change state of this object to Hidden when user clicks to this object" type trigger, but now my screen reader focus is going to the slide start instead of the slide end.

And with both versions of NVDA and both versions of JAWS, I'm often experiencing slightly different behavior when re-opening or re-closing a layer: i.e., my screen reader focus will land in a different spot on subsequent opens/closes.

Thanks,

Doug