Even playlists that I created myself within Jellyfin don’t show up for me, I saw that TJ09 can see those but can’t see imported ones. I only have playlists created within Jellyfin so not sure what’s causing this for me.
I can try to reproduce but I’ll need your exact Jellyfin version, exact settings, exact procedure you follow to create the playlist and so on
Way easier to have direct access but if you can’t find out we’ll try the other way.
I created a different user within Jellyfin for the Yatse application, and offcourse this user doesn’t have any playlists so they don’t show up in Yatse.
Switched to my main Jellyfin user profile in Yatse and now everything shows up.