IN MY LEVEL, I PUBLISHED, THEN THIS STUPID BLACK SCREEN WITH A GENRATE TERRAIN BUTTON PIPED UP. I CANT EVEN EDITO MY LEVEL! I MIGHT HAVE JUST LOST ALL MY WORK. YET, IT STILL SAYS I HAVE THINGS ON THE LEVEL!
Whoa, no swearing please!
You guys sure this should be in the artisan topic?
Also for the future, it would be easier to help you if you put links (to the level for example) or your browser console screenshot
Checking the list of Thangs on the left, it seems like the floors(Like the ground) and everything are still present. It would be appreciated if you screenshot your console. Additionally, you can try logging in and out, clearing your browser cache, or saving again to see if they work again. Nothing seems to be lost, though. 
