Why are there no more lights?

[dimprov]

Remember this too: If your camera is not in the same room as the lights, the room will not appear lighted. You can get around this be selecting the partitioning wall and checking no room definition so the camera thinks it's in the same room as the lights. Doesn't apply to raytracing.

Thanks for this tip!

I have set my camera so that it can move through walls without getting whacked askew. So, what I typically do is start by creating the camera in the room of interest, so the lights turn on, and then move to wherever I want to view the scene.

David
X2