Well there is a song in the playlist, and whenever I close it and decide to open it again from the multimedia keys, the song in the playlist becomes %1 and of course, nothing plays unless I open it any other ways like clicking on a music file.

I had this problem before but I forgot how to fix this issue.

Logitech Elite keyboard, thanks.

It sounds as though your multimedia button is configured to execute the command or something along those lines (where %1 in other cases would be replaced by the name of a selected file). My instinct would be to suggest using the command , but I don't know if you will have anywhere to set this.

good. I trie it now and it works perfectly well

Yep that seems to be the problem, but I don't know if it has to do with the File Types option. Even if I remove it, it still appear back, no idea what to do...