Over the past few years, relations between Caitlyn Jenner and the Kardashians have become increasingly strained.
Things began going downhill when Caitlyn said some less-than-favourable things about ex-wife Kris Jenner in her first interview after transitioning in 2015.
Then, in 2017, Caitlyn gave the family advance copies of her autobiography which included further negative comments about Kris.
However, the real drama kicked off when the book was published and the family claimed the advance copies they'd been given were edited. They went on to say that the published version contained two passages that they hadn't approved, which upset them all over again.
The first was Caitlyn revealing she'd undergone sex reassignment surgery without telling any of them.
And the second was Caitlyn claiming that Kim, Kourtney, and Khloé's late father, Robert Kardashian, believed OJ Simpson was guilty despite being on his defence team.
When Kim discovered the claims in the book, she told her sisters: "It is so shady that Caitlyn gave me the book, and said, 'In the final version, there's a few more things in it, but don't worry, it's nothing about you.' So she lied to me. Because that is about me if it's about our dad."