We just spent a good hour banging our heads against the wall doing some testing trying to figure out how to follow a presentation. I was using both the Logos and Faithlife apps in Android. We had the presentation on air, signals set and selected, location set, presentation groups joined, etc but never saw the presentation nor any prompts.
Finally, I clicked into the bible instead of the home page and "tada" the signals are there.
Why on earth doesn't it show the presentation from the home screen? I guarantee most people who download the app as recommended from a pre-service slide would launch it and it would sit there and they'd just be waiting for something to happen and eventually give up.
PLEASE change this behavior and show available/active presentations on the Home Pages of these apps.