Okay, I downloaded the newest version of BYOND. Now that I have it, every game that I've been working on no longer works. When I run the game my main screens are all doubled over, like there is 30 of them and even after I get it back to normal I can no longer click start game. I then teleported myself of the screen and found all my trees also had doubled and my whole map is covered by trees, even though when I check the map it's fine.

My friend told me to add this chunk of code, the set world format to tile, but I can still not click start even though I place the invisible click on the map and now when I create anything on the map it deletes what ever is under it, so say I try to make flowers on grass, my grass will delete. Please help me, this is starting to really get me frustrated.