Other » Erratic mouse behavior

Hi,

I am having a weird issue while playing Amnesia Dark Descent: both in-game and in the menu, the mouse cursor sometimes jumps/snaps all over the screen, in any given direction, one at a time. In the main menu, this means that sometimes the cursor snaps in a random direction whenever I try to reach a window/button, towards the edges/corners. In the game, I walk with my character and suddenly my vision randomly snaps/jumps either on the floor or on the ceiling. This is clearly a game issue since this is the only game which I've had this problem with. I am using Win10 64-bit and Razer mouse.
I tried the following: I unplugged my Razer mouse (laser) with another Razer mouse (optical), both set at 1800 dpi, nothing has changed. I played with some settings inside the game (resolution, smooth mouse, sensitivity); I tried to set Override high DPI scaling behavior on the game shortcut; I unplugged my Xbox controller.
In the meantime I opened also a ticket at GOG. Does anyone know how I can fix this issue? Any help would be appreciated.

Please help.

I didn't find the right solution from the Internet.

References:-
https://www.gog.com/forum/amnesia_series..._mouse_behavior
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Thanks!