The Anunkasan custom Hawk from the Friend of the West set has lighting issues in its portrait. It's partially black on the lower part.

The same custom Hawk also has issues with its idle (and portrait) animations. Its wings flap horizontally. They flap correctly (vertically) when moving, but when standing still, they move the wrong direction. With this kind of wing movement, the bird would realistically drop, as no upward lift would be created.