Barren Biome misappropiatly shows up on some planetoids that do not have it .

Heya. Irradiated Marsh, Irradiated Forest, and the Regolith Asteroids show as having a Barren Biome while one is not present. 

well, technically one is present, its just that its actually a Forest or Regolith Biome in disguise. Specifically there are 3 problematic subworlds: LargeChasm, LargeChasmStart, and EmptyCaves. 
While not a massive issue overall, it can be misleading seeing that X has a Barren Biome and being glad you dont have to worry about refined metal and that you can get that space platform up quickly, only to be met with nothing and have to reload a save.

(unrelated but are Pacu supposed to spawn in the Ocean Biome? they are tagged as such in the yaml for most variants but never appear in game)