By any chance are the properties of the buttons set as Always on Top? I sent an email to you with the Registration link for the next LAUG (July 30, 2020). I don’t use JAWS but there may be others on the call who can shed some light on this challenge.
That seemed to do it, albeit with some inconsistencies while previewed Chrome or IE. Hmmmm chrome read it wrong, copied the url to EI and it worked, back to the same Chrome and refreshed again and it did it okay that time.