Trouble in paradise?

Kris Jenner and her longtime boyfriend, Corey Gamble, appeared to have an argument while attending Beyoncé’s “Cowboy Carter” show in Las Vegas Saturday.

Jenner was snapped walking away from Gamble in the VIP section after what an eyewitness described as a “visibly tense” exchange. The eyewitness said her daughter Khloé Kardashian appeared to try to “reassure” a “frustrated” Gamble afterward with calming hand motions.

Jenner’s rep didn’t immediately respond to Page Six’s request for comment.

The Kardashian matriarch attended the concert with Oprah Winfrey, Gayle King, Tyler Perry, King’s daughter, Kirby Bumpus, Gamble and Kardashian.

Aside from the apparent tense moment with Gamble, she clearly had a great time in videos she posted on Instagram.

“WOW! Such an incredible night in Vegas at the final night of @beyonce’s spectacular Cowboy Carter tour!! And such magic to see Destiny’s Child @destinyschild and of course the iconic @jayz!! 🤩🤩,” she captioned a montage of concert highlights, including the epic Destiny’s Child reunion.

She also shared a video of the group holding hands and dancing to Beyoncé’s “Texas Hold ‘Em,” though Gamble was not present in the video.

Jenner, 69, and Gamble, 44, were snapped in another tense exchange last month while leaving Jeff Bezos and Lauren Sánchez’s wedding in Venice, Italy.

Lip reader Nicola Hickling claimed to the Daily Mail that the conversation was regarding Jenner’s adamant demand to ride alone in a water taxi instead of sharing the transportation with other guests.

Hickling claimed Gamble told one of the porters, “We’re happy to travel on our own. It’s what Kris would like to do.”

The comment seemed to prompt an annoyed Jenner to get involved.

“What are you doing? Do you need to talk?” she allegedly asked Gamble. “I told you … for God’s sake … I’d like to travel alone.”

Jenner and Gamble have been dating since 2014. In an episode of “The Kardashians” that aired in March, Jenner gushed about their relationship in a confessional.

“Corey is my forever date and we have the best time together,” she said, per People. “We’ve been together over a decade — never thought I’d say that again — and we just have a lot of fun together.”

Jenner has also talked about their 25-year age difference on the show.

“Listen, I can’t explain someone’s chemistry or why people fall in love but it’s been an amazing almost 10 years, and we have a great time,” she said.