Apple Music: What happened to the auto-generated album art tiles?

With one of the recent iOS updates, it seems like they changed playlist images. I really liked having the 4 album covers so I could get a sense of what the playlist sounds like.

Now newly-created playlists default to a plain image. You can edit the playlist to select from other patterns, but there's no option for the old, tiled style. Is there any workaround to get it back?