Problems with Tiles and Layers

I'm having trouble with making a tiled background and using separate layers in conjunction with the tiling features. Although I am certain I was on the 'ground' layer when I was drawing the ground, the ground part is in the 'sky backdrop' layer. This has something to do with the tiling features but I don't know what. I'm attaching the file so you can get a better understanding of the problem.
Thanks in advance :)
Sign In or Register to comment.