Mismatched reflections or lighting between meshes/BSP?

Hello, I am a bit of a noob coming from Source SDK so I am just learning a bit more about Unreal 4. I decided to make a practice level of The Matrix Lobby scene, but I came across this problem and I feel like it could be either lightmaps, reflections, shadows, or lighting… or something unknown to me and I don’t know how I should try to fix it.

When I delete the reflections I have setup, and it uses some default one, they all blend together and looks great except the reflections are incorrect and are coming from outside. So it must have to do with reflections, I have even toggled all of mine off and just made a single sphere reflection, but it does the same thing and it seems to only be happening between individual meshes and BSP.

Any suggestions?