As you've shown no code, this is just a guess.

I suspect you've written something like:

$ perl -Mstrict -Mwarnings -E '
my %x;
my %y = (a => 1);
$x{z} = %y;
say $x{z};
'
1/8
[download]

when you really wanted something more like:

$ perl -Mstrict -Mwarnings -E '
my %x;
my %y = (a => 1);
$x{z} = \%y;
say $x{z};
say $x{z}{a};
'
HASH(0x7fba8082b168)
1
[download]

Note the assignment of %y in the first example and \%y in the second example.

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