I think I've got a puzzling one...(Although Christiane Kerr did fail me last night so I may just be off my game...)
One of my MYO playlists suddenly takes a full 16 seconds to start playing. When it does finally start I've got the 'ring of doom' on the screen, for all tracks.
Have tested on 3 of our 4 Yotos (one is currently being loaned out) and the same thing happens (delay may vary slightly). Everything is downloaded (and no cloud is appearing). Its the same whether the content is started from the card or the app.
Was working fine previously. All other playlists are fine. I updated it a day or two ago and it worked fine following that. 30 tracks, 45 mins, all under 5 mins.