Volumetric Fog feedback thread

Hi, dont know if it was said before, but increasing fog distance crash the volumetric fog when the camera moves and the screen end up completely black. this doesnt happen in small scales. Shouldnt the fog be able to work as expected despite the scale? Is this a bug? Any solutions?

PD: is there any plan to make the light functions work with the volumetric fog?
PD2: It actually work with directional, not with point or other type, have to use the texCoord instead WorldPosition to map the function