No way to know if these are errors or not from my end, but:
1- Characters with the “tiny” trait do 15% less damage. Early notes said this was for melee damage, but it applies to all weapons, including crossbows.
2- Characters with the “Thief” background seem to consistently have higher melee defense than other characters I hire, but their background only says they start with high initiative. Could be random chance on who I’ve hired, but seems pretty consistent.