Pause key not working

When I try to check if the Pause key is down (Keyboard.GetState().IsKeyDown(Keys.Pause)) it very often doesn’t work. Why? All the other keys seem to be detected correctly…

I tried to use the GetKeyState function from the user32.dll (Windows only) and it has the same issue, so I think MonoGame has nothing to do with it…

I also noticed that the key combination RightCtrl + ArrowUp + ArrowLeft does not work (only two of three keys are detected). At a certain point I had the doubt that it could be a keyboard problem, so I tried to use another one and everything works out well (Pause button and the aforementioned key combination). I hope I haven’t bored you …