This is because Amazon Music checks for a Jailbreak when opened. Beta’s are flagged as jailbreaks and blocks it’s use. Only solution will be to revert back and wait for the official iOS, I’m afraid. Annoying, I know. Soz, Chris.
Chills996
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Bristol, England