This might be a fault on my side, as it happened rather late into a colony's life and the modlist changed a tiny bit, but i couldnt find if that was the cause. The problem is that two recently hatched animals have been bugging out. They dont eat food and handlers cant handle them, their health tab is broken and so is the animal tab.

https://gist.github.com/HugsLibRecordKeeper/4c61a7a127accbf91a329d0707151b61

[Ref 3C8C6593]
[Ref 50E9F8E3]