It's Evolution X 3.4 on redmi S2, I don't know how losts the permission, but after restarting, widget it's frozen, and into the app, says me that the SD it's unmounted, and I need to allow to Poweramp grant permission and re scan the library, others apps with SD access, works fine.
I read others post about it in the forum, I install files by google, allow sd permission to system file app, remove Poweramp folder into Android/data after uninstalling, but the issue keeps.
Anyway I'm waiting for the upcoming rom update
Thanks