404 Not Found Error with Two Signers

When we have a package that has two signers and one signer has completed signing and the other is still pending, when we perform a check status, we are getting the following error. Could not get signing status. Exception: The remote server returned an error: (404) Not Found. HTTP GET on URI https://sandbox.esignlive.com/api/packages/nXBOC9qX4SxRrpJgB5B5_GzQArM=/signingStatus?signer=zew1raC2TPoN&document=. Optional details: {"technical":"Could not find the signer summary in the transaction summary 'nXBOC9qX4SxRrpJgB5B5_GzQArM=' with signer uid 'zew1raC2TPoN'","messageKey":"error.notFound.signerNotFound","message":"The specified signer cannot be found.","code":404,"name":"Resource Not Found"}