When I left click or right click to move my camera or turn my character, my mouse when clicked turns into a 4-arrow cross and does not lock in place. When I click, it moves the mouse as if I’m not clicking, so I can turn my character and instead drag my mouse onto my second monitor.
Happens with zero addons enabled, every addon deleted, a fresh install, and after scanning and repairing files.
Video example of this bug: