I have two LG C2 tv's both running OS 03.21.30. Attempts to update the OS state that this is the current version as of 12/2022. Amazon Music won't open on either of them, the splash screen appears and that's it, for hours. It opens fine on other devices in the house, Sony TV, PC's, and droid phones. Other streaming apps work fine with no buffering or glitches.
The solutions offered online list instructions for clearing app caches using a series of menus that aren't even remotely close to the menus available on these TV's. I've checked every available menu and there's absolutely nothing offering the ability to clear app caches. App Manager offers exactly two options: Launch or Delete. Others insist that you need to clear the cache from within the app but of course the app won't open so that's a dead end. I did clear the browser cache but it had no effect this AMZN Music problem.
So far I've also:
Deleted and re-installed the app multiple times;
Left the TV's unplugged 24+ hours;
Full reboot of the router multiple times;
Factory Reset of the TV's.
If anyone has a solution that doesn't involve buying a fire stick I'm very interested - thanks
(edit) one of these tv's is five feet from the router. Distance isn't the issue.
