I’m fairly new to Unity, having majorly worked with the Unreal Engine and Source Engine in the past, doing my 3D Art with Blender. I’m just working on a sort of playground project and ran into this odd behavior once I started to put a little more effort into my materials: (no lights, low ambient, all material shaders are set to Legacy/Bumped-Diffuse and consist of only a diffuse image. Only the floor material has been altered:)
Well I was playing around with it and found another work around, if you don’t feel like messing with GI settings, just add your diffuse texture to the occlusion box on the standard shader as well and it ignores GI. It also gives better results if you add the same diffuse texture on to the Secondary Detail map as well.