obbie Williams" Las Vegas residency could clash with his potential return to "The X Factor" this year.
Bosses of the hit ITV series are said to be concerned the 44-year-old singer may miss out on some shows this year - as he did in 2018 when he was away from his judging spot on a pre-scheduled leg of his solo tour in South America - if he returns to the judging panel, after he announced his first Las Vegas residency for March 2019.
A source told The Sun's Bizarre TV column: "Producers were impressed with Robbie and (his wife) Ayda last year and definitely want them back.
"But there's a bit of a question mark currently over how auditions fit in with his Vegas residency.
"There's talk of ripping up the schedule entirely to work around him. However, the problem is that if they do auditions in May that clashes with "Britain's Got Talent", which most of the crew also work on.
"If they push it back to July, then that puts serious pressure on producers to get all the stages of the show finished, so they're stuck a bit at the moment."
Last year, Robbie blamed himself for teen duo Acacia & Aaliyah's "X Factor" failure, insisting he was the reason his act didn't reach the final because he wasn't there to guide them when he was away on tour.
The former Take That star previously said: "Had I been with them maybe I wouldn't have had them perform "Maniac".
"But from South America it's difficult to feel the temperature of the performance.
"I watched it in Guadalajara in Mexico thinking, "I wish they hadn't done that."
"That's down to me. My not being there cost them, I think.
"But I'm delusional and think I'm going to win everything, which is how I've got this far - delusions."