[Beta] Can't rotate camera?

[なかの31]

Anyone else having a issue where you can't rotate camera?
Whenever I hold right mouse button and move it left or right, the camera doesn't rotate. But if I move the mouse up or down, the camera zooms in and out.

Camera's like locked at 135º to the left, and is kinda messing up my sense of navigation.

Edit: Left and right arrows still rotate camera.

Edit2: Wait a minute... The beta also resets the settings, right?
I think that's why because... I returned to normal game and can move camera with right mouse again.. And there's setting for that..

...Nevermind..