Works fine for me:

#! perl
use strict;
use warnings;

my %HoH =
(
    Flintstone => { Father => 'Fred',  Mother => 'Wilma', },
    Simpson    => { Father => 'Homer', Mother => 'Marge', },
);

my %HoA =
(
    Flintstone => [ Father => 'Fred',  Mother => 'Wilma', ],
    Simpson    => [ Father => 'Homer', Mother => 'Marge', ],
);

for my $family (sort keys %HoH) 
{
    print "$family: ";

    for my $role (keys %{ $HoH{$family} })
    {
         print "$role=$HoH{$family}{$role} ";
    }

    print "\n";

    print "$family: @{ $HoA{$family} }\n";
}
[download]

Output:

12:09 >perl 928_SoPW.pl
Flintstone: Father=Fred Mother=Wilma
Flintstone: Father Fred Mother Wilma
Simpson: Father=Homer Mother=Marge
Simpson: Father Homer Mother Marge

12:09 >
[download]

You will need to show the exact contents of %HoH and %HoA prior to the for loop. (Use Data::Dumper or Data::Dump.)