Kate Middleton is missing in one photo that features all of the Cambridge family members.

On Monday, the Army in London shared a photo with Prince William carrying Prince Louis, Princess Charlotte and Prince George to celebrate the third-in-line to the throne’s 6th birthday on Twitter. The Duchess of Cambridge is noticeably missing in the picture.

“Did the Duchess of Cambridge take this photo?” one netizen asked.

According to Hello!, the photo was taken at the recent charity polo match that Prince William and Prince Harry attended. Middleton, Meghan Markle and baby Archie were present at the event. Therefore, the Duchess of Cambridge was just around when the photo was taken, but it remains unknown why she didn’t pose alongside her family in the picture.

Although Middleton wasn’t in the photo, many didn’t mind her absence because they were entertained with the kids’ reactions. One said that Princess Charlotte looked like she wanted to pet the dog. Meanwhile, Prince Louis looked disgruntled.

“Loving the three separate reactions. George behaves by looking at the camera, Louis pouts as if to say 'get that damn camera out of my face' and Charlotte doesn't care because there's a dog,” another netizen wrote.

Another fan asked if Prince Louis was grumpy. A different user said that Prince Louis always looks “grumpy.” Meanwhile, others find the 1-year-old royal’s reaction hilarious.

“Louis’s facial expression is too funny. He’s so not feeling this photo,” another fan wrote.

According to body language expert Judi James, Middleton looked relaxed and happy with her three children when they watched the polo match. Meanwhile, Markle looked anxious as she carried Archie in her arms while waiting for Prince Harry.

James also commented on Prince William and Prince Harry’s body movements. According to her, Prince William snubbed Prince Harry’s hug attempt.

She added that the Duke of Cambridge looked uneasy and didn’t reciprocate his younger brother’s effort. However, there was a “subtle return” to their close relationship as siblings. It was actually the closest they have been in months.

Kate Middleton
Kate Middleton arrives to launch a new national support line at the charity Family Action on Jan. 22, 2019 in Lewisham, England.  Getty Images/Adrian Dennis