SpotifyAPI: Playlist creation can fail when using family plan accounts

I have an app that allows for creation of playlists and have some users reporting errors that they are receiving this message when attempting to create a playlist (I’m showing the error.localizedDescription in an alert)

You cannot create a playlist for another user (403)

I’ve chatted with some users and every case that this happens is for people with premium family plan accounts (Spotify Duo or 4-person plans). It appears that either their access token or URI is for the main family member’s account while the other is the actual account. Some kind of mismatch resulting in this error. Have you seen anything like this before?