Visual Board Game MKV

I think I've got everything set for this now. All that's left is lighting and some texturing. That being said i'm having a really tough time with texturing. I'm not sure what's happening but when I try to add a map to the material editor the square veiwer just covers up completly with a grey background like in my picture.



I'm not sure how to fix this and it's getting annoying.

I've also decided that my environment shapes were too close to the board and it looked crowed when I added more. So I've spaced it out.



When I sort out the lighting and textures you'll see almost all the blocks with a glairing whiteness and hopefully some bloom effect. I want to put in quite harsh lighting.