Why does the light say preview (with photo)

i have this weird problom that make the light say preview its not the first project that happend to but it didnt matter then but this now matters

Rebuild your lighting, this is the preview lighting untill you build it.

but i cant build it, its stuck at 0

That’s, as the writing says, a preview shadow. It means you have static lights in your scene, which need to be rebuilt in order to show their effects. In the meantime, unreal engine gives you a preview of what the shadows would look like through dynamic lighting while warning you that what you see is only temporary.

To solve it just rebuild the lighting, and if you don’t want to see the preview writing at all, just go on viewport > show, and the option should be there somewhere to untick.

i cant build the lighting it is allways stuck at 0

Add a global lightmass volume around your playable area, and check the lightmap resolution of your static meshes, as higher values will consistently require more time for lighting to be baked. Building the lighting is a heavy task for the CPU, and it might require some time, so let it work for a while.

its not that it is basicly noting new it is stuck at 0 i had let it 10 hours and noting and the scene has almost noting

I hate to ask, but what are your computer specs?

i know its not that because it is only lately started i have been using UE4 for about 2 years now and its not that

Select your DirectionalLight go to Transform > Mobility > change to “Moveble”

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