There are a couple of cows in the game that made a minor inconsistency in the plot. I'm not sure if this is for BGT/Tutu alone and I apologize if this was already addressed.
The first cow in Candlekeep where you get the antidote for was named Nessa and owned by Dreppin. Later in then game you can find another farmer and a cow being attacked by Xvarts and the cow's name was Arabelle. A few chapters later while you are in the Candlekeep Catacombs and being taunted by various Doppelgangers posing as the inhabitants.
CURRENT BEHAVIOR: You find the fake Dreppin saying, "Poisoned Arabelle, have you? And to think I would have left this Keep with the likes of you! Rraaaarrrrh, fleshling….”
EXPECTED BEHAVIOR: The fake Dreppin should be saying, "Poisoned Nessa, have you? And to think I would have left this Keep with the likes of you! Rraaaarrrrh, fleshling….”