In short, as put by Epic Games founder and CEO Tim Sweeney in a social media post, "It’s Discord bots going bad." Though, the full answer is a bit more detailed.

The bots — and, indeed, most things added to Fortnite after Epic stopped publishing patch notes — have remained a big mystery for players. The machine-operated opponents behave somewhat erratically ...

Fortnite punishes players using bot lobbies to manipulate their Ranked standing. Exclusive tournaments in Fortnite require a high rank to participate, leading some players to cheat. Epic Games has ...

Play an old-fashioned Bots-Only match in Fortnite: Battle Royale with this trick. Don’t expect to use this trick to earn XP or for the game to count your wins, but if you’re looking for a casual way ...