Ceiling doesnt being lit with realtime spotlight (and any realtime light)

[tropic harbor]

I use baked light, but also realtime for flashlight, walls are perfectly lit by the spotlight, ceiling is black

[opaque wharf]

Could be inverted normals

[tropic harbor]

so I should change the culling?

[opaque wharf]

No. You should invert the normals. The issue is lighting calculation, not culling.

[wild stirrup]

Assuming the spot light is your realtime flashlight?

What happens when you disable "double-sided" from the ceiling and wall materials / set them to front face only

Regarding their visibility

[tropic harbor]

Still black

no matter front or bottom

[wild stirrup]

Is it black or invisible if it's front face only

[tropic harbor]

black

[wild stirrup]

Confirmed how? If there's a black void behind it, it would be difficult to tell if you're looking at the blackness of the void or of the material

[tropic harbor]

I have light objects with emission, so half of them were cut with the ceiling

[wild stirrup]

Cut? I don't know what that means exactly

This looks like a normals issue to me mostly, if the ceiling has normals facing away it will not receive direct realtime lighting, though it may receive baked and indirect lighting
Setting wall materials to double sided is unnecessary and typically an attempt to fix inverted normals

[tropic harbor]

so, i dug a little bit, and for some reason unity set the light layer to 4 instead of default