Data::Alias was generally broken in 5.18.x (CPAN Testers Reports confirm this).
This seemed to affect quite a few people: there've been a number of posts about this.
Version 1.17 of Data::Alias appears to have fixed the problem; again, CPAN Testers Reports seem to confirm this.
Once (shame on you!)
Twice (shame on me!)
More often than I'd like to be
All the time
Just when answering stupid polls
Who you callin' a fool?
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