Can you verify there are no hidden characters in the hash keys? 
#!/usr/bin/perl
use warnings;
use strict;

use Data::Dumper;

my %h = ( "Event"   => 1,
          "Event\0" => 2,
        );

print Dumper \%h;  # Oops!

$Data::Dumper::Useqq = 1;
print Dumper \%h;

[download]
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re: Ending up with duplicate keys in a hash?\ by choroba
in thread Ending up with duplicate keys in a hash?\ by coffeemaster1

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