On Night 5 or during the 20/20/20/20 challenge, animatronics like Nightmare Bonnie and Nightmare Chica are supposed to be "force-teleported" away when Nightmare Fredbear or Nightmare arrive. However, a known bug can cause players to still die to the original animatronics shortly after 4 AM if the "swap" doesn't execute perfectly.
A bug once allowed players to unlock the hardest mode instantly by pressing "2" and "0" at the same time in the menu. Five Nights at Freddy's 4 баги
Occasionally, Nightmare Bonnie or Nightmare Chica can jumpscare the player even after the clock hits 6 AM if their attack animation was triggered at the exact same millisecond as the night's end. On Night 5 or during the 20/20/20/20 challenge,
While is considered one of the most polished entries in Scott Cawthon’s original series, the community has uncovered several bugs and glitches over the years. These range from minor visual oddities to game-breaking "blackouts." Major Technical Bugs This was removed in a hotfix just 15 minutes later
In the very first release, pressing the "=" key allowed players to instantly skip a night. This was removed in a hotfix just 15 minutes later.
This is the most notorious bug in the PC version. Because FNaF 4 essentially consists of a massive collection of high-resolution "GIFs," the game can hit a 2GB memory limit. This often triggers when Nightmare Foxy enters the closet; the screen may turn permanently black at certain doors or when checking the closet, as the game fails to load further textures.