Read Aloud stops or loops back to earlier section

I like to listen to audiobooks while riding my bike, but Adobe will most often not read for much further than a few pages at a time before stopping entirely or looping back and rereading a section over and over. I cannot keep the app pulled up at all times on account of the need to have the map readily visible, so I assume this might have something to do with the app being in the background, but keeping it open in split screen is arguably even worse because every time my phone reorients in my pocket and the split screens change places, the app refreshes entirely and stops reading. I would just like the app to continuously read without looping backwards whilst being minimized.