Meghan Markle launched her new brand American Rivera Orchard in mid-March to mixed reviews from analysts, critics and the public. Much of this comes down to the failure to release a single product, but other factors could have played a part, chiefly Buckingham Palace. Royal and showbiz expert Mark Boardman exclusively tells The Royal Observer that the Duchess of Sussex “understands the unpredictable nature of public life and media coverage,” which played out as both King Charles III and Kate, Princess of Wales, revealed cancer battles around the same time. “Meghan has always been focused on he…