Marshall Acton II Alexa & Apple Music

Hi there,

I hope you can help. 

I purchased a brand new Marshall Acton II and I have set up Alexa and the speaker with no issues. The Bluetooth functionality works with no problem and the speaker works fine. I use Apple Music and have set this up on Alexa to be the default music provider. When asking Alexa to play a song, the speaker switches to WiFi functionality and although Alexa requests the command, the song does not play through the speaker. Although on the Alexa app - the song is playing. 

Please can you advise further if possible?

Kind regards

Marcus