The Princess of Wales has apologised "for any confusion" after she admitted "editing" a Mother's Day image of her and her children.    Major international picture agencies told media outlets to "kill" the photo from their systems 12 hours after the picture was released by Kensington Palace on Sunday. AP told Sky News the photo broke their manipulation rules as it shows an "inconsistency in the alignment of Princess Charlotte's left hand".    Kill notices are uncommon and usually due to issues with copyright or journalistic process – and this has never happened to a royal picture.    On this edition of the Sky News Daily, Sarah-Jane Mee speaks to Adam Parker from our data and forensics unit, who reveals what the team have learned after analysing the photo’s metadata.    Plus, PR expert Mark Borkowski on whether this has fanned rather than extinguished online rumours, and our Royal Correspondent Rhiannon Mills on where this leaves the royal family.  Senior podcast producer: Annie Joyce Podcast producer: Sydney Pead Promotion producer: David Chipakupaku Editor: Wendy Parker