When I hold down my right mouse button while standing still the screen moves around my character the same as if you hold down the left mouse button, every now and then my character will turn while standing still holding down the right mouse button but then it bugs out and starts to work like you were holding down the left mouse button.
My character only turns when I am moving holding down the right mouse button but pans around my character when i’m standing idle 99 % of the time.