1) Open attached scene or add a Box light in your project
2) Turn OFF Range Attenuation for the light
3) Notice the light is ~ 0.6m above the floor and its range is ~3m
4) Decrease the range to ~1m
4) Notice the light disappears. If you enable Range Attenuation it becomes again visible.

Expected: When Range attenuation is On, the lights intensity should not change depending on the distance to the target
Actual: Even though the light should reach the floor, at a certain distance it disappears.