Is Kim Richards still feuding with her sister, Kyle? According to her recent holiday festivities, she may be.

Where Is Kim Richards? 'RHOBH' Star Hasn't Been On Social Media In Weeks

On Sunday, Kim took to her Instagram, where she shared the first photo of her Christmas celebrations with fans, which took place at the home of her older half-sister, Kathy Hilton. Meanwhile, Kyle and her family were nowhere in sight.

"My Amazing , Beautiful Family this is what it's all about Truly Blessed Proud Mom @whittlesdavis @kcjay @brookewiederhorn @chaddyboy91," Kim captioned the family photo seen below.

'RHOBH' Kim Richards' Sister Discusses Her Arrest, Hopes She'll Stay Sober: 'I'm Excited & Hopeful'

A photo posted by Kim Richards (@kimrichards11) on Dec 26, 2015 at 9:55pm PST

"Kathy and Kim are fine," a source told E! News on Monday, confirming Kyle was left out of the celebration at Kathy's home. "Kathy had Kim and her children over for Christmas this weekend, but not Kyle or her family."

According to the report, Kyle and Kathy are still at odds after feuding over Nicky Hilton's July 2015 wedding, which was featured on The Real Housewives of Beverly Hills.

"As mother of the bride, Kathy had a major say on the guest list. Nicky initially invited Kyle, but then Kathy called and uninvited her. She literally told her not to show up. But Kyle insisted that if Farrah, her oldest daughter, was a bridesmaid and Portia, her youngest, was a flower girl then she should be there," the source explained. "Kathy relented but still said Kyle's other two daughters and Mauricio [Umansky] were not welcome."

The Real Housewives of Beverly Hills airs Tuesdays at 9 p.m. on Bravo.