It seems the fellows using AxKit ran into a similar problem. See here about 1/4 way down the page. They have a link to a patch from the perl5-porters mailing list. I don't know if you are running perl 5.6.0 though, so this may not be very helpful.

In reply to Re: Mason app dies with "Bizarre copy of array in aassign" by Anonymous Monk
in thread Mason app dies with "Bizarre copy of array in aassign" by Jobius

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