Confirmed. Weird is, it seems to be coupled with the mouse i use. With my old crappy 10 bucks mouse it works just fine. No automatic movement or locking. I experience the issue only when i use my Logitech gaming mouse. And only in some settings. When i turn the mouse signal rate lower i have no automatic movement anymore. Default setting leads to automatic movement. Believe it or not.

@RagedDrew this is bullshit man. German people do not cheat more or less than others. This has nothing to do with nationality.