Thank you for your comments.
I have created a small test-case which at least causes the same error-message to be generated.
(I appreciate that many causes may generate the same error-message).

In my small test-case, if I have a "corrupted" $dumped that is passed to eval, then I get the same error-message.
And by corrupted, I mean: could result in a ill-formated string that gets passed to eval.

And, in such an instance, I note that the result of the eval results in a %info that is empty.

(It never crossed my mind to consider that %info = %{ eval $dumper}</code} would result in a null %info.)
So this then becomes another possible trigger for break-pointing or printing out extra information at/around the failure point.

Thank you for your thoughts and time.
Andrew

In reply to Re^4: Help requested to find the cause of an "uninitialized value" message by andyok
in thread Help requested to find the cause of an "uninitialized value" message by andyok

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