I'm going to be honest with all of you, I can't stop talking about Five Night's at Freddy's... but not for the right reasons.
Five Night's At Freddy's might be a cult favorite given the unique style and gameplay it offers, but unique gameplay doesn't make up for the blatant missteps within the entire franchise in regards to the plot and consistency. There have been some excellent theories and FNAF easter eggs, but some things don't add up.
If it was just one game, maybe it could be easily overlooked but seeing as Scott Cawthon is working on a fourth and, thankfully, final Five Night's at Freddy's, all just can't be forgiven just yet.
Don't get me wrong, the game is certainly not a novel and I don't expect everything to be written out for me. Missing elements can be a great thing as it keeps fans thinking and interested; however, when things contradict other previously stated points there's an issue. Unfortunately FNAF has lots of contradictions.
So, with that being said; here are the biggest plot issues within the current trilogy.