Hi Andrew,
Sorry for the late reply.
To get to this point I simply created a couple of point lights with a blue colour.
I placed them under a static mesh, as they are supposed to be caused by a device under the mesh that makes it hover.
I just built the lighting and it was white. When I changed it from static to stationary the blue came back.
I don’t think I can keep them as stationary as it is causing a conflict and causing the red X to appear.
I’m using version 4.5.0.
Thanks