Chrome Not Playing playlist in full

[samantha7v]

I have created a playlist with approx 20 songs. I hit play and it plays the first song but when that song is over it plays some random song that I have never heard of or entered into my que or playlist.

I try to play another song on the playlist. It plays that song then when the song is over it plays another random song not on the playlist. 

What am I doing wrong? I'm on chrome for chromebook using the web player.