getSigners() for a DocumentPackage

I have a client that is having an issue where they are not getting an accurate list of signers for a transaction initiated in eSignLive through their Associate account. They have the following code to process notifications coming from eSignLive, but only the package sender is getting sent as the signer:

private List buildSigners(DocumentPackage documentPackage) {
              final List signers = new ArrayList();

              for (Map.Entry entry : documentPackage.getSigners().entrySet()) {
                     final com.silanis.esl.sdk.Signer eslSigner = entry.getValue();

                     final Signer signer = new Signer();
                     signer.setSignerId(eslSigner.getId());
                     signer.setFirstName(eslSigner.getFirstName());
                     signer.setLastName(eslSigner.getLastName());
                     signer.setEmailAddress(eslSigner.getEmail());
                     signer.setAuthenticationType(AuthenticationType.getByAuthenticationType(
                                  eslSigner.getAuthenticationMethod().name()));
                     signer.setSigningOrder(Integer.valueOf(eslSigner.getSigningOrder()));

                     signers.add(signer);
              }

              return signers;
       }