I came across an annoying problem; when rendering the whole scene or a larger crop, the light off a spotlight is not rendering, whilst it does render correctly when decreasing the crop.
Default PT render. The spotlight angle has been enlarged to outer 180º and inner 170º and is located just off the 'logs' in the fire, turned upwards of course, spotlight soft shadows @ 1, not illuminating atmosphere, rest is default. There's another lightsource for the glow in the smoke, and surroundings.
Is this a bug or am I doing something wrong?