Can't add songs to shared playlist on Mac

I'm having the same thing happen. When the song is playing at the top of the Music app and I go to add the song from the (three dots > Add to Playlist) it doesn't show in my list of 'All Playlists'

A work around I found is, if from the top area (three dots > Show in Apple Music) find the song in the album and then click its three dots > Add to Playlist then it works.

Found a work around.

Create a new playlist and add all the song you want to it.

Then go on your phone and add the new playlist to the shared one.

Same here - any tips?

This is making me crazy. Anyone figure this out yet? The only work around I have is I can add the songs on my iPhone app but on the computer it doesn't work.