Continuity mistake: After Kate spits up the blood, the position of it on her chin changes.
Snow Place to Go/Dunce Upon a Time/Gems the Breaks - S2-E4
Continuity mistake: Snow Place to Go: Toothy pulls half of Cuddles' body out of the hole in the ice, and some of its blood is next to the hole. Then when Toothy looks down at the orca's eye through the hole, the blood is gone, and in the next shot, Cuddles' corpse is gone completely. (00:04:32)