Hello, I just got into big reactors, playing on my FTB monster world, and I made my first reactor. It was a 7*7. I created the entire multiblock structure, but when it wasn't turning into one, I clicked it and it said a block wasn't valid for the structure's interior. I went to the block. I tried breaking and replacing it, replacing it with reactor glass etc. Nothing happened. If anyone knows what's going on please post a reply.
Thanks.
Thanks.