Light Channel doesn't work when camera is far way from point light

As you can see from the attached images, when the camera is far from point light to a certain extent,
light channel doesn’t work. Is there any way to solve the problem?

The setting is below.

cube ⅰ: light channel 0 is checked

cube ⅱ: light channel 0 and 1 is checked

cube ⅲ: light channel 0 and 2 is checked

point light surrounded by blue line : light channel 0 is checked

point light surrounded by red line : light channel 1 is checked

point light surrounded by green line : light channel 2 is checked