As absences go, James Acaster’s decision not to join his Celebrity Traitors co-stars for the post finale edition of Uncloaked was one that was never going to go unnoticed.Bar Maya Jama, who apparently was away filming the Netflix show The Gentlemen, the rest of the cast gathered to congratulate winners Romesh Ranganathan and Sebastian ‘Bash’ Croft.Not only was Acaster – voted off on Thursday’s penultimate episode when he sensationally confessed to being a Traitor – absent but Uncloaked presenter Ed Gamble never even mentioned him.And now that the highly successful series is finally over, the full extent to which Acaster fell out with Ranganathan and his best friend Rob Beckett can be revealed – and the issue at the centre of strained relations was a familiar one: class.Sources say that when the cameras stopped rolling, the two working-class comedians aimed their barbs at middle-class Acaster, who confided to friends that he felt increasingly singled out, bullied and attacked on a daily basis.A show insider said: ‘At the heart of it you had a middle-class man and two working class. James felt that some of the remarks were directed not simply at him as a fellow comedian, but at his background and upbringing.‘He is said to have felt that being the more middle-class member of the comic contingent made him an easy target for Romesh and Rob. He felt that the game was difficult enough without what he perceived to be a separate battle with them over his social background.‘No formal complaint was made at the time but James has discussed with friends how the experience had become increasingly unpleasant. Being at Uncloaked would not have been the top of his list of places to be on Friday afternoon when the episode was filmed, but being there when Romesh was being celebrated for winning the show was most definitely not appealing to him. Comedian James Acaster was reportedly the victim of bullying behind the scenes on Celebrity Traitors‘Rather than wanting to revisit an experience that had become so negative, he is said to have decided that he simply did not want to put himself through it all again.’While it is unknown whether he subsequently lodged a complaint with production company Studio Lambert, his PR team has made no secret of the duty of care the show had for the comedian, who has previously spoken of his mental health challenges.Filming had to be stopped after Acaster made a dramatic confession to being an unwilling Traitor but was re-started ahead of the round table.Tensions emerged early in the competition, with Ranganathan, 48, and Beckett, 40, teasing 41-year-old Acaster. What the pair are said to have regarded as harmless, boyish banter was, according to accounts attributed to Acaster, experienced rather differently.While Ranganathan’s father went to prison for fraud, and he grew up in a council house in Crawley, West Sussex, and Beckett is the son of a lorry driver, Acaster had a comfortable upbringing in Kettering, Northamptonshire. His father was a science teacher.My show source says: ‘Behind the scenes was toxic this year. There was a lot of unrest.‘Being confined to a hotel with no communication to the outside world is hard.’ Meanwhile, Ms Jama’s absence from Uncloaked came after she appeared to be furious with fellow Traitor King Kenny, who banished her in the round table during the final, watched by 11.5 million viewers. Faithfuls Romesh Ranganathan and Sebastian Croft won this year’s show An associate of Maya Jama suggests she was so emphatically obsessed with winning that being banished would have hugely irritated herAs she left the room, she told the remaining contestants: ‘Good luck. You’re gonna need it.’ While she appears to have a valid excuse for missing Uncloaked, she didn’t send any apologies or message.One associate of Maya’s suggests she was so emphatically obsessed with winning that being banished would have hugely irritated her.‘Maya played a blinder, then got screwed over by the player she recruited to be a Traitor,’ says a show insider. ‘She was not happy.’Studio Lambert has reportedly been furious that such claims have been played out in public and has denied there was any trouble behind the scenes.However, one rumour the studio couldn’t keep a lid on was the discrimination row which threatened to plague the show – American actress Myha’la’s claim that she was the victim of unconscious bias when it came to race.Responding to a social media user who said the show was racist and that’s why she was banished, she said: ‘I do agree that unconscious racial and cultural bias exists in this game where my authenticity or honesty or the ways in which I choose to express myself look suspicious to people who are unfamiliar with people like me.’Studio Lambert bosses were terrified of criticising what she said; the BBC, less so. Sources there assured me that when it came to the final, Myha’la would be proven wrong – and she was. Four out of six of the finalists were non-white, including one of the winners.My BBC insider says: ‘That was a hideous situation. It started off a big race row just four episodes in when everyone in charge of the show knew that at the end Myha’la would be proven to be wrong.’Some inside the show suggest that the level of isolation contestants are placed under is what took the biggest toll. Ross Kemp, who is no stranger to dangerous and demanding environments, admitted that he found being in Afghanistan easier than The Traitors.A source said: ‘There was a psychiatrist available to all of the celebrities, but being put under the immense pressure, coupled with not being able to speak on the phone without a chaperone was really hard.‘Some want the success more than others too, and then you have producers trying to calm it all down. But what is undeniable is the juicy fallouts when the cameras stopped rolling – and the public getting to know something about them – helped draw in the viewers to make the show a massive success.’