I tried pairing my Mantis Q40 Braille display to an Apple TV 4k 2nd gen (newest model). The Apple TV shows it is paired and even connected under Settings > Accessibility > VoiceOver > Braille, and the Mantis shows the Apple TV's name in the connections list. However, choosing the Apple TV in the connections list just gives device selection failed error.
Has anyone gotten Braille to work on Apple TV? Is there a solution? On a side note, the Apple support page for Braille on Apple TV indicates Braille should work and connect to any device that iOS connects too. The devices listing page it links to is very dated though with many newer Braille displays that work with iOS are not listed.