Problems Playing MP3's on S4

I have mp3 music files in a few folders I created. They are sorted by genre. Used to be if i opened one of the folders and check marked all the songs there and clicked on one and hit play, they would all play in order. Now, no matter what I do, only the song I click on plays. Don't know what changed but I just cannot figure how to get them to all play sequentially. Anyone have any ideas? Thanks.

from DroidForums.net | Android Forums & News https://ift.tt/2r6NTUa
via IFTTT