Seems like a familiar problem: added the lesson to my playlist in the web app, but it does not appear in the playlist on iOS until I add it in iOS.
Adding it in iOS does not duplicate the entry in the web app, it simply makes sure I can see it and play it in iOS.
Thanks for reporting, we will look into it.
This continues to be an issue that wastes user time again and again. Thorough testing should have solved this issue long ago. Just today I find that certain tracks added to a playlist no matter which platform I use to add them, don’t show up where I need them most to play: on my mobile phone.
