Any one else's non-public playlists no longer loading for people you sent them to?

Friend of mine brought to my attention that a playlist of mine that I privately shared to them previously no longer loads.

The behavior prior to today used to be - if you made a playlist and had Make Public toggled off, the playlist would still load for anyone you specifically gave a link to the playlist, allowing you to privately share your playlist without it showing up on your profile or elsewhere on the site.

Is anyone able to confirm this change in the behavior of playlists with Make Public toggled off?