Liked recommended Songs are not appearing in my favorite songs playlist

[h1symf-0s_o4m]

Over the past 3 months ive added a lot of songs from the autoplay recommendations to my favorite songs. Most of them are not showing in that playlist and they also dont appear in my history. This is really anoying. I dosent always happens and it only happens on my phone(android)

[Eni]

Hey there @h1symf-0s_o4m, 

Thanks for getting in touch about this here in the Community. 

Just to confirm, are you referring to the songs you added to your Liked songs from the Smart Shuffle recommendations or from the songs that started playing after the Liked songs playlist ended (Autoplay)? Also, has this ever happened to a different playlist? 

Additionally, we'd like to know if you've been listening to those songs on the same device (your phone) or somewhere else. Could you check if you can find them in your Liked songs or in your listening history on a different device? Also, do they show up just after you added them and then disappear or they won't be added to the playlist at all? 

If the issue is only isolated to your phone, we suggest that you try logging out and then logging back in to your account twice in a row. This will trigger a sync between your account and device. 

We'll be on the lookout for your reply.