I was experimenting with some stuff in JCS earlier today, when I found something weird with the Destruct Scenery BOMB. If you make a long line of tiles and put 2 Destruct Scenery BOMB events next to each other in it, it makes every other set of 2 tiles in the line disappear. If you go to the end of the line they reappear again, go back and they're gone.

I'm using 1.23 and I don't think tileset choice matters. I could upload the file somewhere if anyone wants to see it. Correct me if I'm wrong but I don't think this has been done before...