forge world issues...

I really enjoy the Forge World and thank you guys done a wonderful job with it. There’s so many new opportunities I didn’t have before, but been having issues in creating a map I cannot finish. this issue happened in Halo Reach Halo 4 and now Halo 5. I’m finding myself using invisible lights to try to Bringing out the color of the blocks of what they should be. I’ll set a block in a certain area and it will turn black. I tried replacing the block, and even moving a portion of that map to get the color to show on the Block that I Assigned it too. By moving the map it will cause another block to turn black instead of keeping all the blocks that I have set to one color. I tried a few different things and even turning off Light bake is not working. This is occurring in all the maps that are in Forge World. The map i’m working on is called Guardian H3 from Halo 3.