Royal expert Katie Nicholl tells OK!

“Harry is living a wonderful life in California, but he faces a challenge,” Nicholl says.

“He always wanted his children to grow up close to William and Kate’s.

Baby Archie looking at camera

That would be the childhood he enjoyed with his own cousins, Zara, Beatrice, and Eugenie.

Sadly it’s looking increasingly unlikely for Archie” (via Daily Charlotte News).

“Both my grandparents do zoom,” Harry said at the time.

Prince William and Kate Middleton with their children

“They’ve seen Archie running around.”

Eighteen months have passed since Archie was last in the U.K.