That's just it. I can't seem to get LUTs to work. I thought it was Unreal and they use a texture LUT. Then I was like okay, I'll just use a .cube LUT instead like normal. hmmm no change.
What I mean by pre-loaded is when I jump back into a scene or project the the LUT has already been applied. It's in the slot as selected but for some reason not work. So I have to select another LUT and then go back to the one I had already used. Then it works. So in short. If you save the scene with a LUT you have reload the same LUT for it to work again.