AR lighting

I am in the process of making an AR app for android not using the AR template, I set it up from scratch, I made an earlier version and got it working fine, I have a planet that spawns in the scene when you touch the screen, however, I didn’t have any lighting yet it still worked fine, then I had a power cut and Unreal being unreal when I came back to it, it was all corrupted so I had to start from beginning, this time round my planet is just pure black, so I added lighting to the scene but for some reason its only lighting one side of the planet up, ive added another light at the other side but it doesn’t seem to change anything in the AR app.

What type of light did you add? I would add a global illumination and not a point or spot light.