This is normal generation.
That's just a "bad" seed you had. It's not a bug.
This is the same with the advencment "Was On" and this work even if it's not in the world border.
Catrop, do you want to say that all the goat horns in the creative menu are "Ponder" or not?
IlayButer
This is normal generation.
That's just a "bad" seed you had. It's not a bug.