Apple music "Loved" not synching between Mac an...

I have a music library on my Mac on which 559 songs are loved (with the Heart sign)

The library is synced with iCloud, but when I look at my iPhone or iPad, there are only 136 songs "loved"

If I love a song on IOS it seems to appear on the Mac as loved right away. But loving a song on the Mac does not seem to sync with the IOS device.