Hatch can be found even before it spawns.

Coder

I made two videos explaining and showcasing the bug.

Hope it helps.

https://www.youtube.com/watch?v=7GLGhzP7UtE

And this shows it's still in patch 5.1. (I used "annotated blueprint" and found it behind shack)

https://www.youtube.com/watch?v=GLbhqdDGOnY