I get an error message that sporadically appears when I play a file from a folder on my sd card, error mentions failed to play file. This happens when I open the folder, and open the music file which opens in Poweramp with this message appearing. Then I repeat the same steps again, it normally plays! Also, when I'm playing a file and pause it for a few minutes and my screen goes to lock screen, when I open my screen again, I find the app still open but automatically switches to another random file. In settings, I chose all my SD and all my phone memory as allowed directories for Poweramp app. Appreciate if anyone has an explanation. I am unable to attach screenshot. Version 3 build 939.