Kookadoba

Sometimes when I'm playing and I mess something up, I say "Oh rotten Kookadobas!"

It's the last quest I need to finish, but I can't find any of those mudballs to crack. I think it's rlly slowing me down.

I'm in the wilds right now and i haven't seen a single kookadoba seed (saber slime mudball) is this supposed to happen or is it bugged