Try dereferencing the temp hash: 
    foreach $key2 (keys %{$hshFoo{$key}}) {
        ...
    }

[download]
You also might want to have a look at Data::Dumper and perlref.

In reply to Re: Referencing a HoH by kilinrax
in thread Referencing a HoH by P0w3rK!d

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