For some reason I press download and a few minutes later I check last added and its not there not even when I pressed the download option its there

When I make changes to the artist name or title the changes don't seem to be saved.

Device info:

It says failed to load

I always have to reboot my phone to have the music in my musiclibrary. Also after i downloaded it and still am in my app, i have to restart bluplayer because i'm stuck and can't do anything. I tried tapping away but i'm only able to let the music play. Please fix this as fast as possible because i'm tired of always waiting too long for my music.