I cannot place light function at all lights that present in my level

I don’t understand why I can’t place light function to all types of lights that present at my level. I have checked alternative material, but it didn’t, Also I have checked with another project, it did work. But for some reason nothing happening at this level that currently I am working on. What might this case?

Video here https://youtu.be/6RcxCiVQwu0