I just noticed (been playing ONI for a while so i'm surprised i didn't catch this sooner) that the critter feeder lacks a few of the types of food items to feed to the bug type critters (both bug and nymphs).
So far the list of food items missing:
Coral: Gristle Berry
Royal: Gristle Berry
Sun: Gristle Berry
Shine: Gristle Berry
I would check all the critter types to ensure that no other food items are missing from the critter feeder.
I've looked at the other types and here is what is missing
Hatch: Crushed Rock (Unused so not as important), Muckroot, Mush Bar, Pickled Meal
Sage: Mush Bar, Mush Fry, Pickled Meal
Shove Vole: Regolith
Steps to Reproduce
Build a critter feeder, check the bug types and check it against the critter type in the log.
This issue has not been confirmed by a developer yet.