Fortnite 'shadow stone': Season 6 update has biggest feature removed after players turn permanently invisible

Fortnite developers have had to pull the new season's biggest feature just hours after it was released. When the new update arrived, players rushed to get their hands on the "shadow stone": an object that could make the players who held it invisible. It was the most central of the spooky new updates, which also include the ability to have pets and changes to the map. But when they arrived in the game, players found that the invisibility wasn't necessarily temporary, as expected. Instead, there was a way of going invisible forever.