Automix keeps playing from the wrong playlist

I am trying to create a playlist for a wedding, so I originally made a spotify playlist and used the automix feature. It seemed to be working fine, until I tried to play a different playlist using automix. It played the original playlist. So, I closed the application and restarted it, same issue. So, I restarted the computer. Same problem. I’ve logged out of spotify, and it still tries to play those songs now, only it scrolls through them, since it doesn’t have access to them. So, I un-installed the program on my computer and re-installed it. Same issue. It’s still trying to automix from that original playlist. I have no idea what to do.