The Duke and Duchess of Cambridge are key members of the royal family, but recently the couple faced an awkward ‘snub’ after they weren’t included in a poignant royal video. Whoops!

Over the festive period, Kensington Palace’s social media channels posted a series of ‘highlights’ videos, reflecting on the life in 2017 for the Royal Family.

The Twitter account, @KensingtonRoyal, posted four special clips, highlighting William, Harry and Kate’s work, engagements and overseas tours.

READ MORE: Prince George and Princess Charlotte appear in new photo together for the Duke and Duchess of Cambridge’s Christmas card 2017

They also created a more personal video, remembering the families own little high points throughout the year.

The 50-second clip showcased some of the year’s most adorable moments, including George and Charlotte’s starring role at Auntie Pippa’s wedding. And of course, Harry and Meghan Markle’s exciting engagement news!

However, there one, *ahem*, pretty key moment missing from the ‘highlights’ reel. Can you guess what it was?

Yep, the short clip failed to remember Catherine and William’s exciting third baby announcement back in September! Only one of the most exciting pieces of royal news of the whole year, right?

The video skipped straight from Harry, Catherine and Wills commemorating the late Princess Diana on their visit to the Sunken Garden, to the Duke’s last shift as an air ambulance pilot. But in between those two events, the couple had actually announced the news that they were expecting for a third time.

READ MORE: William and Kate: their royal love story

Fans also picked up on the awkward oversight, with one writing,”You forgot the Baby #3 announcement….”. And another said, “What about the announcement of the Duke and Duchess of Cambridge expecting a baby?”

However, most fans were just pleased to see a compilation of all of the family’s wonderful 2017 moments.

One social media user said, “I love this! Can’t wait to see what’s in store for 2018!”, while another wrote, “Thank you for this tribute. It is a lovely walk down memory lane. Cheers to 2018.”

We’re sure the missing clip was an honest mistake – and likely, William and Kate aren’t too fussed themselves!

Anyway, we’re just looking forward to the adorable pictures of the brand new Cambridge addition. That, and George and Charlotte’s reaction to their brand new sibling…