If you are watching stories on Instagram and there are 2 in a raw with sound, Powerarm pauses the execution of music, like it's supposed to, but when you skip to the next story, the music restarts over the story sounds, which you won't be able to hear.
With other players like PlayerPro this works correctly, the music stays paused until you have finished looking at stories with sounds.
My guess is that Instagram sends a "resume music" event quickly followed by another "pause music" event when passing between 2 stories, and Poweramp just ignores the second one, probably because it still hasn't responded to the first or something like that.
Poweramp v3-884 (playstore, beta, up to date)
Samsung S10
Android 10
One UI 2.1
Open Instagram, find a user with 2 stories that have sounds in a row, play them next to each other
Note that the problem has happened for like a year, it always had it.