So the reason why this is happening, is because nightmare refuses to save for some reason. Neither save or save as work. All the old topics that i can find don't have answer on how to fix this.
I'm trying to to insert a map that looks like this:
But when I try to play it this happens:
It plays just fine, but it's loading the original tileset instead of the one I'm using, 1C1D1E1F.
Is there something wrong with the settings I used?