Audio icon stopped appearing on Scripture

I have been listening to the Book of Mormon regularly on my iPad. Suddenly, i cannot get the audio icon to appear. (It still appears on my iPhone.)
Restarting, re-logging in all to no avail. Anyone have any ideas?

What chapter are you on? Are you scrolled to the top of the chapter? What version of Gospel Library do you have installed? Also, what English content version? (You can check the app and content version under Settings > App Details.)