so im making a ugx map and the single player button is broken and everthing else works fine. whenever i press the button it makes a rumbling sound like the game should load but nothing happens.

so im making a ugx map and the single player button is broken and everthing else works fine. whenever i press the button it makes a rumbling sound like the game should load but nothing happens.

I had the same problem a few month ago. I had put in a new Fastfile mod.csv. It worked after that.