Another question re playing music

[gw18and5]

Hi all. I've tried searching but haven't found my issue discussed.

Echo dot is connecting fine to the Internet,  answering questions, connecting via Bluetooth and connecting to Hue etc.

I have music in Amazon Music but Alexa will say "sorry, you have no music in your library". In the Alexa app in the Music and Books section- Amazon music- when I try and tap on playlist or artists etc it reads 'Error getting Amazon Music playlist/artists etc information. Please try again later'. This happens on multiple devices which are all authorised.

I definitely have music in the Amazon music library that plays fine through the app itself. I've tried a reset of the Dot with no change.

Aby advice please?

Thanks in advance.

[Jez]

Do you have other family members who also have an account, try saying 'Alexa switch accounts'. My daughter has music but I don't so we have to switch to hers in order to play it.