I'm trying to create a space background for my map. As a model, I created an empty map on Braxis Alpha Ex2 tileset, and looked at the data there. (In that tileset, if you draw a low cliff, it turns into space, which is what I want.) I took their texture set and copied the attributes Background Model (Fixed), Background Model (Not fixed), Camera, etc, but I ended up with a kind of broken variation:
What did I miss?
(Note that it's important that I add this space background functionality into my already existing map, rather than start over from a blank space map.)