Thank you, I believe this is the issue.

My debug for an instance of this undef value has $never_blank_value as T_ (after substr)

$never_blank_value contains a–zA–Z0–9\-_ so it's likely this would break if it contains the hyphen or underscore, I will run a regex over $never_blank_value to filter out these disallowed characters.

In reply to Re^2: crypt sometimes returning undef by Beaker
in thread crypt sometimes returning undef by Beaker

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