I am suddenly experiencing this exact same problem, except it occurred when I tried to use the Windows 10 desktop app. All the symptoms are the same (the desktop app looks and feels just like the browser), no sound when I click "play" triangle, spinning circles, etc. I use this app daily and this just started happening today. After reading through this thread, I tried opening it in my browser (Firefox) and sure enough, it started playing correctly. I then closed and tried the desktop app again, hoping it would now be working, but no luck. I then went back to the browser and was planning to just listen from there for the day and see what happened with the app tomorrow. Unfortunately, I played with getting autoplay to work in Firefox and now Firefox is doing the same thing (not playing, just rotating disc). So I've got both the desktop app and Firefox in a broken state. I then decided to use Edge. That is working for me right now, but I haven't tried going back yet. I'll try that, but I'm guessing that the desktop app probably still won't work, and that is what I really want to use, not a browser. Anything I can check to try to fix that?
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