A bug in tvOS can prevent users from using the full 128GB of the top-range Apple TV 4K, leaving 64GB unusable.Key to the few but good updates in the latest Apple TV 4K is the option to have a 128GB version, which particularly suits users of Apple Arcade. The greater capacity means more games can be stored on the Apple TV 4K and so be instantly available.However, according to flatpanelshd, only the first 64GB of space is recognized by tvOS.Read more