Exactly true. The FBI agent said officers broke open the safe with a saw, finding the CDs, jewellery, computer hard drives, "loose diamonds", passports and “large amounts of US currency.” They took photographs of the items, but left them at the residence as they did not have the warrant to remove them. When they returned four days later, on July 11, they were no longer there. Agent Maguire, a member of an FBI Child Exploitation and Human Trafficking Task Force, said she then called Richard Kahn, Epstein’s lawyer who now serves as the executor of the later financier’s estate, to ask what happened to the items. “Twenty to thirty minutes after the conversation, Richard Kahn came to the residence and brought them items back in two suitcases,” Agent Maguire said. She could not confirm the content on the returned CDs was the same as the ones that were taken, but confirmed all the items were accounted for.

(Emphasis mine)

The big red flag corruption for me. Why did the FBI open the safe if they knew they weren't allowed to remove its contents.