Orianna's ball and direction
When Orianna shields an ally the ball goes to them and stays until Orianna removes it by shielding herself or getting out of range.
However, when the ally champion with the ball dies, the ball disappears (visually) but then reappears after Orianna uses a skill. Also, the arrow around Orianna (that points to where the is the ball and changes colour depending on the distance from Orianna) pointing to the allied champion that died, would glitch and stay there until the game ends. (Meaning Orianna would have 1 frozen arrow beside her and another properly working one)