I want to print out all the keys through my loop that dont exist in my hash NgrpsHash, but its only printing one of them, cbtest.

use strict;
use warnings;

my $notexists = 0;
my $hashdiff  = ( (scalar keys %EgrpsHash) - (scalar keys %NgrpsHash) 
+);
print "\nI am now checking primary and secondary groups defined in AD 
+and locally on $host...\n";
             
LABEL: for my $ekey (keys %EgrpsHash) {
    last if $notexists >= $hashdiff;
    if ( ! exists $NgrpsHash{$ekey} ) {
        print uc("\n$nuser is **not** in the same 'ad' and or 'local' 
+groups as $euser is!\n\n");
        print uc("*** $nuser needs to be in ''$ekey'' group(s) for int
+erface support rights! ***\n\n");
        print "Please correct this then rerun with the -r flag!\n\n";
        print "$nuser\'s AD+local groups\n", join("\n", sort keys %Ngr
+psHash),"\n";
        print '=' x 11,"\n";
        print "$euser\'s AD+local groups\n", join("\n", sort keys %Egr
+psHash),"\n\n";
        print uc("please change this within centrify gui! right-click 
+on new user, properties, profile tab, primary group, then rerun \n\n"
+);                           
        ++$notexists;
        goto LABEL;
    }
}
[download]

__DATA__ is

tsilvia's AD+local groups
cbpro_group
cbproop
cbqa
cbqaop
cbtestop
===========
thendri1's AD+local groups
cbpro
cbpro_group
cbproop
cbqa
cbqaop
cbtest
cbtestop
[download]

thx!