I've noticed that if my camera is anywhere but the exact center of my screen, it snaps to the center when I press a movement key, (like A/D or W/S). Also, after my camera snaps to the center of my screen, I have restricted up and down camera movement while moving.
I've tried to fix this by, reinstalling the game, deleting cfg, restarting pc, verifying files (steam), ect. If there is a fix or a possibility to make the snapping motion of the camera less snappy and more smooth, lemme know (: <3