Monks above mentioned why this fails. But since push can handle undefined situations, it would work if you just begin with an empty hash.
# $vectorRef = { 'time' => \(), 'data' => \() };
my $vectorRef = {};

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Update: Abigail actaully had this, so this whole answer is quite useless :P.

In reply to Re: Problems with array references and 'use strict' by Hena
in thread Problems with array references and 'use strict' by uberbiskit

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