HELP! Trouble playing my Spotify

[RNRRT]

I play my premium Spotify with on my Samsung Galaxy 9 Plus and I cast it to my television.
I am having a problem playing my songs on my main playlist in order.  I tried making a new playlist... same problem.  The shuffle is NOT on.  What is happening is whatever song in the playlist I hit to play, the next song that automatically always plays is the song at the very top of the playlist.  I just want to hear my songs in the order that I put them in.  I have not noticed a problem when I listen to my music with my headphones on my phone, but I do notice the problem when I cast to my Chromecast.  This is the first time I have noticed the problem since I cast my Spotify often.  I hope someone can help me.... not life or death but awfully irritating.
Thanks so much!  🙂