Good news.
I replaced the hash with an array and the results were at least consistent.
I analyzed the output and I found a flaw in my algorithm. I fixed the algorithm and the program works fine now.
However, the weird behavior remains, ... maybe as a meditation.

Thanks a lot.

In reply to Re^2: weird subroutine behavior by flaviusm
in thread weird subroutine behavior by flaviusm

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