Chava exclaims "Lamb!" when looking at the restaurant menu yet she orders fish.
Chava's story about her escape from the camp does not add up. In the first season, it was established that Ruth and Meyer secretly observed the human chess game where she was killed.
It makes little sense for Hitler to say "Kopfhaut" instead of "skalps". The word has been widely adopted into German because of the writings of Karl May, along with an enduring German fetish for American Indian culture, or May's version of it. Many Germans are obsessed with cowboys and Indians to this day and most German children have read the classic Winnetou novels.
Since Jonah and Chava have a high stakes bet going about who of them identifies the Crow first, it makes no sense for them to tell each other which dinner guests in the hotel they have excluded from their list of suspects and why. They would each just be making it easier for the other.