I am not familiar with settlement agreements:
"At a pre-trial hearing, Mr Brettler, for the Duke, also said Ms Giuffre has previously entered into a settlement agreement “releasing the Duke and others from any and all potential liability. He told the US district court for the southern district of New York that the lawyers have “significant concerns about the propriety of this lawsuit”.
[.....]
"The alleged settlement agreement cited by Mr Brettler is currently sealed under the order of a different judge, the court heard."
[....]
"Mr Brettler said that he believed the document “absolves our client from any and all liability”, adding other defendants had avoided similar proceedings by relying on its existence."
Why and with whom would Ms Giuffre make a settlement agreement? Is this a sort of payment between two parties with a result that no liabilities are pursued? Why does another judge block the opening of said settlement when this seems a quite important document?