Do you think this is because of the separate package ??

Kinda hard to tell from your snippets, but almost certainly yes. If you were using strict and warnings, I would expect to see some other messages that would clarify things greatly.

You could try declaring %Totals as a global variable. Whilst they are generally to be avoided, they actually fit quite well with the concept of thread-shared data.

our %Totals :shared;
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You'll need to do this in every package (scope) where you use it.