Dragon's Deceit zipline animation bug

isthisscience

Just replaced Dragon's Deceit for the first time in a year or so and the animation for the ziplines is bust. When you zipline down at an angle, it uses the animation for travelling horizontally (traverse). The traverse and rappel animations themselves are correct though, only the zipline down one seems to be bust.

Also, in the room where you first meet Eldex ("The Facility") the lighting is incredibly low, you can barely see a thing.