Google play music playback is not advancing to new track. How can I correct this problem?

[AC Question]

I use Google Play Music app on my Samsung S6 to play downloaded music when I take my dally walk. In the last few days I have found that the app will not automatically advance to the next song. Must manually advance. I have unsuccessfully looked for a setting that contrOlsen this function

 

[B. Diddy]

Welcome to Android Central! Are the songs part of one album, or are they from different albums? Or are you playing them on a playlist?