Hi,
I am an Italian Amazon Prime subscriber.
I installed Prime Music addon 0.10.8 on Kodi on Raspbian. I gave Email and password but then also an OTP code is requested to be provided, once I got it on my cell phone sent from Amazon although my accont does not have 2 factor authentication enabled. After that the addon popup says I am not logged in. Therefore I do not have access to the Music Prime service
Please note that I managed to logon with my usual credentials via PC to the Amazon.DE web portal, so I do not believe it is caused to some geo restriction (Italy vs Germany)
I can add part of the kodi logs here below
2020-01-06 23:08:48.011 T:2545148112 ERROR: /home/pi/.kodi/addons/plugin.audio.prime_music/default.py:1171: UserWarning: gzip transfer encoding is experimental!
br.set_handle_gzip(True)
2020-01-06 23:08:50.313 T:2545148112 NOTICE: plugin.audio.prime_music: MFA form step 1
2020-01-06 23:08:56.164 T:2545148112 WARNING: addons must not activate DialogBusy
2020-01-06 23:08:56.955 T:2545148112 NOTICE: plugin.audio.prime_music: MFA form step 2
2020-01-06 23:09:18.753 T:2545148112 WARNING: addons must not activate DialogBusy
2020-01-06 23:09:21.337 T:2759303376 ERROR: GetDirectory - Error getting plugin://plugin.audio.prime_music/
2020-01-06 23:09:21.350 T:2973514848 ERROR: CGUIMediaWindow::GetDirectory(plugin://plugin.audio.prime_music/) failed