Same what I explained. The problem is the shot projectile. For more info check my post:
I think I can clarify a bit more. The bug is also present when aiming at a shot projectile. When no projectile is present aiming behaves just as it should. But, when a projectile is shot in the sand and you are aiming directly at the projectile the mouse sensitivity suddenly jumps up drastically.
Although the mouse and settings will most likely not be the problem as it is reacting to an ingame object which is not accessible from the mouse:
Input settings:
MouseSmoothness: 0,
MouseSensitivity…
