FYI this is still an issue in 2024 on Apple Watch Ultra with full cellular connection. I have to start playing it on my phone then switch my app in the watch to play on the watch. If I'm away from the phone it just buffers endlessly. I let it keep buffering the other day for my entire 30 minute walk. Was planning on using Pandora for running but looks like Apple Music is the better option. Too bad they've had YEARS to fix this and just have not bothered. ... View more