Did the above and tested again - still the same but I tried the other ear which I have set for "Next Track" and that too turns the radio off and starts Apple Music.One other test - left it on Siri and Siri did come up and not Apple Music.Next: made sure Apple music was closed but it still started playing music with a double tap.Next: turned off the double tap and that works because it didn't do anythingNext: started Apple Music and double tap works fine.Next I will try another app - Tried NGEN Radio and it works fine. It might just be the Sports Day app.Apps that work - Amazon Music, Way-FM and NGEN RadioI am leaning towards the Sports Day app not working properly.