Is there any update on this bug yet? I cannot download beta versions on the Amazon Fire so I have to wait for the official release.
My son is desperate to play again.
So frustrating.
I have the same issue with FireOS on my son's Amazon Fire Kindle.
Minecraft works ok on the parents profile but has the licence issue on the restricted kids profile.
I downloaded the latest version on my Amazon Fire, had to uninstall then redownload to get the latest.
After force stopping and clearing cache etc it is all working!
My son will be so pleased.