This is something that was present during The Edge of Fate, but the shifting spine on the Vow of the Disciple Hunter class item (Resonant Fury Cloak) currently has an issue where it’s not really wanting to stay attached to the cloak anymore and remains in a static position that doesn’t match the cloak animations. Getting onto a Sparrow makes it particularly egregious as the spine will shoot up several feet into the air and hover over the character as you drive around before snapping back when you get off. It’s extremely funny to watch, but also just a bit distracting.