How to delete built lighting to set scene back to raytraced?

If you only have movable lights, it should be quick…

Hello,
I have a scene with built lighting, which I need just raytraced.

  • I deleted all reflection captures and all light map data

  • set it to raytraced and everything to movable

  • I have also replaced the PPV and the camera to be sure that there are no weird settings

  • project is raytraced, PPV is ratracing on, exposure is bright…

Still everything renders black with “preview” written on it.

Please help, thanks

In the same folder as your map, there’s a file called ‘… build_data’, remove that.

NB: Keep a copy first, just in case…

EDIT: Also reading what you wrote a bit more closely. I know it makes no sense, but build light to get rid of the data.

Thanks, I had at very first deleted the “built_data”,
normally this was enough,
but in this level, everything I put in is just displayed black.

The light building takes so long, so I wanted to avoid building light.