The [ ... ] are causing your problem. They create an anonymous array in which your anonymous hash is.

Try it without them:

$Employee_Rec = {
                   Emp_No    =>1,
                   Emp_Lname =>2,
                   Emp_Fname =>3,
                   Emp_SSN   =>4,
                   Emp_DOB   =>5,
                   Emp_aka   =>6,
};
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