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Technically it's correct.

I think addressing the hunger prevents it.  Make sure you actually have enough civilian rail allocation to transport the food.

It's ironic how the bug free version has a bug that makes it unplayable.

A couple notes: 

While the "score a card" mechanic is useful, the naming seems a little misleading.  The main purpose of it seems to be having cards count as being within the zoo for victory objective purposes without them cluttering the deck.  But because "score a card" is based on fairly uncommon animal activations, I spent a bit of time thinking it meant activating a card and was left wondering why my balloon stands weren't helping.

Guest cards are easy to come by and there are other sources of money so the unhappiness mechanic doesn't really have much teeth.  A lot of the time I found myself eager to reduce the number of guests in my deck.

This is a really nicely balanced deckbuilder game!  It does a good job of creating a lot of diversity and making every card seem useful.

Very serene.  I love it!

Seems like I can do four thousand and some at best.  I really suck at aiming the satellites at the novas.