The bootcamp stage has undergone a number of changes in recent years and it's now made up of a (ridiculously complicated) system with six seats that must be filled by successful contestants.
The categories have already been decided upon and each judge can audition their possible finalists as many times as they like.
Once an act gets approval from their judge, they can take one of the seats, however, if someone better comes along, they can be ousted.
At one of the recent auditions, the crowd “lost patience”, according to The Mirror, and started chanting when Louis put through a novelty act over another who demonstrated real musical talent.
The crowd’s outrage left the show’s warm-up man Ian Royce attempting to calm the situation, telling them: “This act don’t deserve that booing, this is their opportunity so you give them the same respect you’ve given every other act tonight.
“This is their big moment, make sure you give it to them!”
A spokesperson for ‘X Factor’ has denied that the show judges are ‘fixing’ the show, explaining the complicated nature of the bootcamp format.
“As part of the Six Chair Challenge the judges have to decide who they take through to Judges Houses,” the spokesperson has stated. "Until all acts in their category have sung and the judge has declared that they have chosen their final 6, each judge is able to change their minds and bring back anyone they have removed from a seat at any stage.”
When they’re not dealing with audience issues, Cheryl and Louis have been arguing with each other, and earlier this week the former Girls Aloud singer hit out at her fellow judge, stating he has “fifty different faces”.
The show is expected to return to TV screens in early September, and Tulisa looks set to make her return during the Judges’ Houses stage.