Actors and foliage being completely illuminated even when no lights

I’ve recently been working on a survival game, and I just recently implemented a day / night system. While I was testing it, I noticed that there were a lot of things that were fairly illuminated, even in total darkness. I did a ton of research and did a few tests and I found that this happened to every actor I placed in the world, except for the terrain for some reason. I really don’t know whats going on and I really want to fix it because its bugging me.


This image shows what it looks like in total blackness, but with the disabled light sources

It seems that building the lighting actually fixed the problem. I can’t believe I was silly enough not to try that earlier.