New Playlist not playing on Yoto

Hey Everyone, Im pretty sure there's a simple explanation but I need some help. I first tried it out by downloading a song on youtube, linked it to the card and it works beautifully.

I read your posts about MYO cards with the pixilated photos etc. I dowloanded some Spanish with Liz songs from Spotify and other songs my son loves, I organised did the whole thing.

I relinked it to the card with my phone and with the Yoto the second time and it wont work. The playlist works if I play it on my phone but it wont play if I play it from my app to the Yoto and using the Card. It only plays the one song I initially downloaded. Is it normal?

Im going crazy... thank you!!