cpanm is my go to, if you still want to know where the cpan problem is I'd look at issues and changelogs, you have not shared which version exhibits the problem.

In reply to Re^3: cpan, local mini-mirror, and urllist - can it be made to work? by marto
in thread cpan, local mini-mirror, and urllist - can it be made to work? by Intrepid

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