export missing field most records

[daisymay]

I'm using perl to export records from LDAP. I did not write the script, so I don't even fully understand it. What I do know is that it binds to LDAP and exports records, but the 'lastlogin' field only exports on records 4 through 26. The other 14,000 records do not export that field. I've used Console1 to check records that did not export the lastlogin field, and a last login date does exist.
I'm completely puzzled, here is some code - I hope someone can offer a hint?

Should I be posting this in the perl section??

# ldap directory connection
$ldap=Net::LDAP->new($ldap_server);

open(OUTFILE,">Ldap_out.txt")
  or die "Cannot open output file\n";


#bind 
$ldap->bind(
  dn         =>  $ldap_dn,
  password   =>  $ldap_pw
);

$psearch=$ldap->search(
  base   =>  $ldap_basedn,
  attr   =>  ["uid","sn","givenname","location","cn","title","dn","mail","employeenumber","title","location","departmentnumber","uidNumber","telephoneNumber","logintime"],
filter => "(&(objectclass=Person)(objectClass=mailRecipient))"
);

foreach $pentry($psearch->all_entries){
  $uid=$pentry->get("uid");
  $sn=$pentry->get("sn");
  $givenname=$pentry->get("givenname");
  $location=$pentry->get("location");
  $cn=$pentry->get("cn");
  $title=$pentry->get("title");
  $dn=$pentry->dn;                                   
  $mail=$pentry->get("mail");
  $employeenumber=$pentry->get("employeenumber");
  $departmentnumber=$pentry->get("departmentnumber"); 
  $uidNumber=$pentry->get("uidNumber");
  $phone=$pentry->get("telephoneNumber");
  $login=$pentry->get("logintime");

Thank you!