Lighting Build Errors

Are you placing actors with a blueprint by any chance?

I’ve had this message when ( by some process ), the actors are still in the world outliner, but not actually in the level ( ie, nothing can be seen ).

After trying a lighting build I received the errors shown on the attached images. The documentation help is far from clear. Can someone help me out? Please don’t assume I know anything. I am a UE4 novice.

Thanks,

That’s a possibility. What should I do? Delete them?

Thanks. I’ll give that a try.

Yes, they’re not doing anything…