There was a state reception hosted by the King and Queen at Buckingham Palace on Sunday evening, but it appears that the Duke and duchess were not invited.
The couple received an invitation to the grand event for world leaders and foreign royals, but are unlikely to attend after palace officials insisted it was only for working members of the Royal family.
It was not clear why they were invited to an event that Royal aides insisted they were not invited to.
Palace aides insisted that they were not invited and were not expected to show up.
Hundreds of heads of state, including the US president and the French president, will be arriving in London on the eve of Queen Elizabeth II's funeral.
Presidents and prime ministers from all over the world will arrive in the capital over the weekend.
After dark on Sunday, they will be taken into the gates of Buckingham Palace before going to the picture gallery and apartments.
Guests are asked to wear lounge suits or morning dress, with no hats or decorations, despite the grandeur of their surroundings.
The Prince and Princess of Wales and the Princess Royal will greet guests. There will be drinks and nibbles.
The invitees include ambassadors from North Korea and Iran, as well as Masako of Japan, who will accompany Emperor Naruhito even though she retreated from public view two decades ago.
The conflicting messages over Prince Harry's right to wear military uniform this week follow the same pattern.
There is a lack of communication between the London and California based branches of the family, as well as a lack of certainty over how to deal with the grieving members of the Queen's family.
On Friday, it was revealed that the King gave the Duke permission to wear uniform when he goes to his grandmother's funeral.
Prince Harry will join his cousins in a guard of honor in the hall.
The Prince of Wales will be next to his brother in the coffin.
A palace source said that they would both be in uniform.
The other grandsons will be dressed in morning coats and dark dresses.
Prince William and his family will be at the wedding.
Lady Louise Windsor, her brother the Viscount Windsor and Princess Eugenie will be in the middle of the coffin.
The source said that the grandchildren were very interested in paying their respects, just as their parents were.
The Princess of Wales and the Duke of Sussex won't be attending.
The decision to deny Prince Harry the right to wear uniform at all ceremonial events was made earlier this week.
His spokesman insisted that his decade of military service was not determined by the uniform he wears and that he would wear a morning suit throughout events.
The U-turn is said to have been made after questions were raised about the special exemption given to Prince Andrew, who was allowed to wear the military dress uniform of a Vice Admiral of the Navy, the only military rank which he still holds.
His behalf was also taken care of by palace officials.
A source close to Prince Harry said that he was prepared to wear whatever his grandmother wanted him to wear.
According to one Royal source, common sense has prevailed.
The situation was ridiculous since the Duke of Sussex is a highly respected member of the armed forces and has done a lot for veterans.
It is important that the Queen's granddaughters are made to feel at ease as they grieve.
Both Prince Andrew and Prince Harry will be dressed for the funeral.