After reloading, aiming down sights, or inspecting the Hurtsall 2K, the player's left hand and right index finger will twitch upwards, as if off by a frame.
When ADSing, it does this once. When reloading or inspecting, it does this twice in less than 1/4 of a second.
At very low framerates like 10 fps, it becomes more exaggerated, further off the gun.
Steps to reproduce:
Reloading, not from video.
Reloading should finish here. Extra movement: