LG G7.  Android 9. Beginning this week, coincident with upgrade to Android 9, when I press play, most of the time I get the error message "Failed to Play File!" but the file nonetheless plays.  I've also noticed that on the screen when the track plays, the minutes and seconds elapsed stays at 0:00, the waveform doesn't progress, and I can't speed up or reverse the track by touching the waveform.  Any ideas?