The random upwards snaps could be prevented during the beta by turning the Steam Controller input off, by right clicking the game in the library. Played the game without any major problem that way before. BUT NOW, disabling the steam input will get your aim stuck to the ground. The only input from the controller is "look down". You can see that by trying to set any keybinds on for your controller and it will produce "look down" no matter what you click.
So when using a controller, you chose between an absolute game breaking bug or frustrating interference when your aim snaps to the sky
