Meghan Markle and Prince Harry’s U.S. operation has reportedly suffered another setback as their new chief of staff, Josh Kettler, has resigned after just three months in the role. The sudden departure comes just days before the Sussexes are set to embark on a significant tour of Colombia, raising concerns about the stability of their team.

According to the Daily Mail, Kettler, a seasoned public relations professional, has abruptly left his position. A source from California reportedly confirmed the news, stating, “Josh Kettler is no longer working for them.” Kettler’s exit is seen as a significant blow, particularly as he was recently seen accompanying Prince Harry on a rare visit to London for the tenth anniversary of the Invictus Games.

Kettler’s departure adds to a growing list of high-profile resignations from the Sussexes’ team. Earlier this year, Bennett Levine, the manager of their television company Archewell Productions, also stepped down. This followed the exit of Oscar-nominated producer Ben Browning, who left his position as head of internal content at Archewell in January of the previous year.

Kettler was reportedly hired to guide Prince Harry through the next phase of his and Meghan’s public and professional endeavors. His sudden resignation, however, leaves the couple in a difficult position just before their “quasi-royal” tour of South America. The reasons for Kettler’s departure remain unclear, but the timing has sparked speculation about potential challenges within the Sussexes’ U.S. operations.

Kettler was previously seen entering St. Paul’s Cathedral with Prince Harry during the Invictus anniversary celebrations, an event that featured high-profile attendees such as Harry’s uncle, Earl Spencer. Notably, no other members of the British royal family were present at the ceremony.